Home Free Printables Science 10th Grade 🔬 Free 10th Grade Science Worksheets Download 116 free 10th Grade science worksheets. Printable PDFs for science practice — tracing, writing, problem-solving and more.
Science Observation Inquiry Critical Thinking Atomic structure and periodic trends Home Practice Bonding, reactions and balancing equations Moles, concentration and acids and bases
10th Grade Science Worksheets(116) AI-powered activity ideas to keep your little ones learning, playing, and growing every day.
© 2026 LittleActivity. All rights reserved.
Built for families who love playtime
Classification SCIENCE · 10TH GRADE Name Date Sort each item into the correct category. Classification Group A Group B Group C Word Bank — Cut or write each item in the correct column: • item 1 • item 2 • item 3 • item 4 • item 5 • item 6 • item 7 • item 8 • item 9 How did you decide where each item goes? www.littleactivity.com 10th Grade · Science
Biodiversity SCIENCE · 10TH GRADE Name Date Record your experiment observations below. Biodiversity Question / Hypothesis: How much variety of life is in one small area? Materials Needed: • quadrat or hoop • clipboard • hand lens • identification chart • tape measure Steps / Procedure: 1. Place the quadrat on a grassy patch 2. Count how many different species are inside 3. Record each with a sketch 4. Repeat in a second, different area What I Observed: Area Species count Grass Under trees Path edge Conclusion: The area with more species was... Biodiversity matters because... www.littleactivity.com 10th Grade · Science
Vocabulary Builder — Energy Flow Through Food Webs SCIENCE · 10TH GRADE Name Date Break each word into parts, then write what the whole word means. Energy Flow Through Food Webs Word Word parts What it means simmer protein vitamin nutrition harvest www.littleactivity.com 10th Grade · Science
Human Impact SCIENCE · 10TH GRADE Name Date Read the passage, then answer the questions below. Human activity now changes Earth's systems at a scale comparable to natural processes. Burning fossil fuels adds carbon dioxide to the atmosphere; clearing forests removes carbon sinks and destroys habitat; intensive agriculture releases methane and nitrous oxide and depletes soil; urban growth seals land and alters local water cycles. Plastic and chemical pollution spread through food chains, and species are being lost at rates far above the background fossil rate. The effects interact rather than adding up neatly — a warming climate pushes species towards the poles and to higher ground, but fragmented, developed landscapes block the routes. Because many impacts persist for centuries, the timing of action matters as much as its size. Questions: 1 Name three human activities that alter Earth's systems and say how. 2 Why does habitat fragmentation make warming worse for species? 3 Why does the timing of action matter? www.littleactivity.com 10th Grade · Science
Observation Log — Natural Selection SCIENCE · 10TH GRADE Name Date Record your natural selection observations. Natural Selection Observation Log What to observe: • what you see • what you measure • any changes • questions you have Time Sketch What I noticed Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Evidence For Evolution SCIENCE · 10TH GRADE Name Date Record your evidence for evolution observations. Evidence For Evolution Observation Log What to observe: • what you see • what you measure • any changes • questions you have Date What it looked like Measurement Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Adaptation SCIENCE · 10TH GRADE Name Date Record your adaptation observations. Adaptation Observation Log What to observe: • what you see • what you measure • any changes • questions you have Date What it looked like Measurement Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Speciation SCIENCE · 10TH GRADE Name Date Record your speciation observations. Speciation Observation Log What to observe: • what you see • what you measure • any changes • questions you have Date What it looked like Measurement Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Phylogenetics SCIENCE · 10TH GRADE Name Date Record your phylogenetics observations. Phylogenetics Observation Log What to observe: • what you see • what you measure • any changes • questions you have Trial Drawing Result Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Population Dynamics SCIENCE · 10TH GRADE Name Date Record your population dynamics observations. Population Dynamics Observation Log What to observe: • what you see • what you measure • any changes • questions you have Date What it looked like Measurement Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Energy Flow Through Food Webs SCIENCE · 10TH GRADE Name Date Record your energy flow through food webs observations. Energy Flow Through Food Webs Observation Log What to observe: • living things seen • who eats whom • non-living things seen • weather that day Day Drawing Notes Day 1 sketch 6 woodlice under the log, damp soil, cloudy Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Biogeochemical Cycles SCIENCE · 10TH GRADE Name Date Record your biogeochemical cycles observations. Biogeochemical Cycles Observation Log What to observe: • reversible? • gas or bubbles? • color change • substances combined Trial Drawing Result Day 1 sketch Fizzed at once, got colder, bubbles for 40 s Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Biodiversity SCIENCE · 10TH GRADE Name Date Record your biodiversity observations. Biodiversity Observation Log What to observe: • living things seen • who eats whom • weather that day • signs of change Date What it looked like Measurement Day 1 sketch 6 woodlice under the log, damp soil, cloudy Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Human Impact SCIENCE · 10TH GRADE Name Date Record your human impact observations. Human Impact Observation Log What to observe: • what you see • what you measure • any changes • questions you have Time Sketch What I noticed Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Field-style Ecological Investigations SCIENCE · 10TH GRADE Name Date Record your field-style ecological investigations observations. Field-style Ecological Investigations Observation Log What to observe: • what you see • what you measure • any changes • questions you have Time Sketch What I noticed Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Classification — Review SCIENCE · 10TH GRADE Name Date Sort each item into the correct category. Classification — Review Group A Group B Group C Word Bank — Cut or write each item in the correct column: • item 1 • item 2 • item 3 • item 4 • item 5 • item 6 • item 7 • item 8 • item 9 How did you decide where each item goes? www.littleactivity.com 10th Grade · Science
Biodiversity — Review SCIENCE · 10TH GRADE Name Date Record your experiment observations below. Biodiversity — Review Question / Hypothesis: How much variety of life is in one small area? Materials Needed: • quadrat or hoop • clipboard • hand lens • identification chart • tape measure Steps / Procedure: 1. Place the quadrat on a grassy patch 2. Count how many different species are inside 3. Record each with a sketch 4. Repeat in a second, different area What I Observed: Area Species count Grass Under trees Path edge Conclusion: The area with more species was... Biodiversity matters because... www.littleactivity.com 10th Grade · Science
Acids SCIENCE · 10TH GRADE Name Date Record your experiment observations below. Acids Question / Hypothesis: How can you tell an acid from a base? Materials Needed: • red cabbage indicator or pH paper • lemon juice • vinegar • soap solution • baking soda solution • water Steps / Procedure: 1. Put a small amount of each solution in a cup 2. Add a few drops of indicator 3. Record the color 4. Match the color to the pH scale What I Observed: Solution Color Lemon juice Pink/red Water Soap Conclusion: On the pH scale, acids are below 7 and bases are... Neutral means... www.littleactivity.com 10th Grade · Science
Observation Log — Molar Mass SCIENCE · 10TH GRADE Name Date Record your molar mass observations. Molar Mass Observation Log What to observe: • what you see • what you measure • any changes • questions you have Date What it looked like Measurement Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Percentage Composition SCIENCE · 10TH GRADE Name Date Record your percentage composition observations. Percentage Composition Observation Log What to observe: • what you see • what you measure • any changes • questions you have Day Drawing Notes Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Empirical Formulas SCIENCE · 10TH GRADE Name Date Record your empirical formulas observations. Empirical Formulas Observation Log What to observe: • what you see • what you measure • any changes • questions you have Time Sketch What I noticed Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Balancing Equations SCIENCE · 10TH GRADE Name Date Record your balancing equations observations. Balancing Equations Observation Log What to observe: • what you see • what you measure • any changes • questions you have Day Drawing Notes Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Mole Ratios SCIENCE · 10TH GRADE Name Date Record your mole ratios observations. Mole Ratios Observation Log What to observe: • what you see • what you measure • any changes • questions you have Date What it looked like Measurement Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Stoichiometric Calculations SCIENCE · 10TH GRADE Name Date Record your stoichiometric calculations observations. Stoichiometric Calculations Observation Log What to observe: • what you see • what you measure • any changes • questions you have Day Drawing Notes Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Limiting Reactants SCIENCE · 10TH GRADE Name Date Record your limiting reactants observations. Limiting Reactants Observation Log What to observe: • what you see • what you measure • any changes • questions you have Trial Drawing Result Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Percentage Yield SCIENCE · 10TH GRADE Name Date Record your percentage yield observations. Percentage Yield Observation Log What to observe: • what you see • what you measure • any changes • questions you have Date What it looked like Measurement Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Solutions SCIENCE · 10TH GRADE Name Date Record your solutions observations. Solutions Observation Log What to observe: • what I saw happen • color change • reversible? • temperature change Trial Drawing Result Day 1 sketch Fizzed at once, got colder, bubbles for 40 s Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Molarity SCIENCE · 10TH GRADE Name Date Record your molarity observations. Molarity Observation Log What to observe: • what you see • what you measure • any changes • questions you have Time Sketch What I noticed Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Acids SCIENCE · 10TH GRADE Name Date Record your acids observations. Acids Observation Log What to observe: • gas or bubbles? • substances combined • temperature change • reversible? Trial Drawing Result Day 1 sketch Fizzed at once, got colder, bubbles for 40 s Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Bases SCIENCE · 10TH GRADE Name Date Record your bases observations. Bases Observation Log What to observe: • color change • temperature change • gas or bubbles? • reversible? Trial Drawing Result Day 1 sketch Fizzed at once, got colder, bubbles for 40 s Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Titration Practice SCIENCE · 10TH GRADE Name Date Record your titration practice observations. Titration Practice Observation Log What to observe: • what you see • what you measure • any changes • questions you have Date What it looked like Measurement Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Ecology SCIENCE · 10TH GRADE Name Date Record your ecology observations. Ecology Observation Log What to observe: • what you see • what you measure • any changes • questions you have Trial Drawing Result Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Biotechnology SCIENCE · 10TH GRADE Name Date Record your biotechnology observations. Biotechnology Observation Log What to observe: • topic / question explored • sources used • key facts found • how I organized info Day Drawing Notes Day 1 sketch Searched 2 websites, found 3 key facts about topic Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Reactions SCIENCE · 10TH GRADE Name Date Record your reactions observations. Reactions Observation Log What to observe: • color change • temperature change • substances combined • what I saw happen Trial Drawing Result Day 1 sketch Fizzed at once, got colder, bubbles for 40 s Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Stoichiometry SCIENCE · 10TH GRADE Name Date Record your stoichiometry observations. Stoichiometry Observation Log What to observe: • what you see • what you measure • any changes • questions you have Time Sketch What I noticed Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Motion SCIENCE · 10TH GRADE Name Date Read the passage, then answer the questions below. Motion is a change in position, and describing it always requires a reference point. A passenger sitting on a train is not moving relative to the seat but is moving at 80 km/h relative to the platform, so neither answer is wrong — they use different frames of reference. Position, distance, and displacement are three different quantities: distance is the whole path travelled, while displacement is the straight-line change from start to finish, with a direction. A runner who completes one lap of a 400 m track has travelled 400 m of distance but has a displacement of zero. Speed uses distance; velocity uses displacement, which is why velocity can change even when speed does not. Questions: 1 Why can two people disagree about whether a train passenger is movin… 2 What is the displacement of a runner who finishes one full lap? 3 How do speed and velocity differ? www.littleactivity.com 10th Grade · Science
Cleaning Data Sets SCIENCE · 10TH GRADE Name Date Record your data in the table. Graph your results. Cleaning Data Sets Item Observation Measurement Notes Sample 1 Describe it Record data What happened Graph: Results Samples Conclusion: Based on my data, I can conclude that... www.littleactivity.com 10th Grade · Science
Simple Data Visualisation SCIENCE · 10TH GRADE Name Date Record your data in the table. Graph your results. Simple Data Visualisation Item Observation Measurement Notes Sample 1 Describe it Record data What happened Graph: Results Samples Conclusion: Based on my data, I can conclude that... www.littleactivity.com 10th Grade · Science
Functions SCIENCE · 10TH GRADE Name Date Read the passage, then answer the questions below. Functions are the language for describing how one quantity depends on another, and the notation f(x) means the output of the function f for the input x, not f multiplied by x. Linear functions change by a constant amount for each unit of input, so their graphs are straight lines and their tables have constant differences. Exponential functions multiply by a constant factor instead, so they start slowly and then rise steeply. Recognising which type a situation calls for is the practical skill: a flat fee plus a rate per hour is linear, while a population doubling each generation is exponential. Reading a graph well means naming both variables with units before saying anything about the shape. Questions: 1 What does f(x) mean, and what does it not mean? 2 How do linear and exponential functions differ? 3 What should you do before commenting on a graph's shape? www.littleactivity.com 10th Grade · Science
Observation Log — Lists SCIENCE · 10TH GRADE Name Date Record your lists observations. Lists Observation Log What to observe: • what you see • what you measure • any changes • questions you have Date What it looked like Measurement Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Dictionaries SCIENCE · 10TH GRADE Name Date Record your dictionaries observations. Dictionaries Observation Log What to observe: • what you see • what you measure • any changes • questions you have Day Drawing Notes Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Files SCIENCE · 10TH GRADE Name Date Record your files observations. Files Observation Log What to observe: • what you see • what you measure • any changes • questions you have Time Sketch What I noticed Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Functions SCIENCE · 10TH GRADE Name Date Record your functions observations. Functions Observation Log What to observe: • what you see • what you measure • any changes • questions you have Date What it looked like Measurement Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Modular Design SCIENCE · 10TH GRADE Name Date Record your modular design observations. Modular Design Observation Log What to observe: • what you see • what you measure • any changes • questions you have Day Drawing Notes Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Cleaning Data Sets SCIENCE · 10TH GRADE Name Date Record your cleaning data sets observations. Cleaning Data Sets Observation Log What to observe: • what you see • what you measure • any changes • questions you have Day Drawing Notes Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Simple Data Visualisation SCIENCE · 10TH GRADE Name Date Record your simple data visualisation observations. Simple Data Visualisation Observation Log What to observe: • what you see • what you measure • any changes • questions you have Date What it looked like Measurement Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — HTML SCIENCE · 10TH GRADE Name Date Record your html observations. HTML Observation Log What to observe: • what you see • what you measure • any changes • questions you have Date What it looked like Measurement Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — CSS Structure SCIENCE · 10TH GRADE Name Date Record your css structure observations. CSS Structure Observation Log What to observe: • what you see • what you measure • any changes • questions you have Trial Drawing Result Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — How The Web Works SCIENCE · 10TH GRADE Name Date Record your how the web works observations. How The Web Works Observation Log What to observe: • what you see • what you measure • any changes • questions you have Time Sketch What I noticed Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Privacy SCIENCE · 10TH GRADE Name Date Record your privacy observations. Privacy Observation Log What to observe: • what you see • what you measure • any changes • questions you have Day Drawing Notes Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Security Basics SCIENCE · 10TH GRADE Name Date Record your security basics observations. Security Basics Observation Log What to observe: • what you see • what you measure • any changes • questions you have Date What it looked like Measurement Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
DNA Replication SCIENCE · 10TH GRADE Name Date Cover the word bank. Label as many parts as you can, then check. DNA Replication 1. adenine 2. thymine 3. guanine 4. cytosine 5. double helix 6. nucleotide Write the parts you remember: Notes: www.littleactivity.com 10th Grade · Science
Non-Mendelian Inheritance SCIENCE · 10TH GRADE Name Date Read the passage, then answer the questions below. Inheritance is the passing of traits from parents to offspring through genes. Each parent contributes one copy of every gene, so offspring resemble their parents without being identical to either. Some traits are controlled by a single gene, but most — height, for example — are shaped by many genes together and by the environment as well. Traits acquired during a lifetime, such as a scar or a learned skill, are not inherited, because they do not change the genes that are passed on. Questions: 1 How many copies of each gene does a parent contribute? 2 Why is height not controlled by a single gene? 3 Why is a scar not inherited? www.littleactivity.com 10th Grade · Science
Observation Log — DNA Replication SCIENCE · 10TH GRADE Name Date Record your dna replication observations. DNA Replication Observation Log What to observe: • what you see • what you measure • any changes • questions you have Date What it looked like Measurement Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Transcription SCIENCE · 10TH GRADE Name Date Record your transcription observations. Transcription Observation Log What to observe: • what you see • what you measure • any changes • questions you have Trial Drawing Result Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Translation SCIENCE · 10TH GRADE Name Date Record your translation observations. Translation Observation Log What to observe: • what you see • what you measure • any changes • questions you have Time Sketch What I noticed Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Mutations SCIENCE · 10TH GRADE Name Date Record your mutations observations. Mutations Observation Log What to observe: • what you see • what you measure • any changes • questions you have Trial Drawing Result Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Their Effects SCIENCE · 10TH GRADE Name Date Record your their effects observations. Their Effects Observation Log What to observe: • what you see • what you measure • any changes • questions you have Day Drawing Notes Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Mendelian SCIENCE · 10TH GRADE Name Date Record your mendelian observations. Mendelian Observation Log What to observe: • what you see • what you measure • any changes • questions you have Date What it looked like Measurement Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Non-Mendelian Inheritance SCIENCE · 10TH GRADE Name Date Record your non-mendelian inheritance observations. Non-Mendelian Inheritance Observation Log What to observe: • what you see • what you measure • any changes • questions you have Time Sketch What I noticed Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Sex Linkage SCIENCE · 10TH GRADE Name Date Record your sex linkage observations. Sex Linkage Observation Log What to observe: • what you see • what you measure • any changes • questions you have Time Sketch What I noticed Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Pedigrees SCIENCE · 10TH GRADE Name Date Record your pedigrees observations. Pedigrees Observation Log What to observe: • what you see • what you measure • any changes • questions you have Trial Drawing Result Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Gene Expression SCIENCE · 10TH GRADE Name Date Record your gene expression observations. Gene Expression Observation Log What to observe: • what you see • what you measure • any changes • questions you have Date What it looked like Measurement Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Epigenetics SCIENCE · 10TH GRADE Name Date Record your epigenetics observations. Epigenetics Observation Log What to observe: • what you see • what you measure • any changes • questions you have Day Drawing Notes Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Gel Electrophoresis SCIENCE · 10TH GRADE Name Date Record your gel electrophoresis observations. Gel Electrophoresis Observation Log What to observe: • what you see • what you measure • any changes • questions you have Time Sketch What I noticed Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Ethics Of Genetic Technology SCIENCE · 10TH GRADE Name Date Record your ethics of genetic technology observations. Ethics Of Genetic Technology Observation Log What to observe: • topic / question explored • sources used • key facts found • how I organized info Day Drawing Notes Day 1 sketch Searched 2 websites, found 3 key facts about topic Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
DNA Replication — Review SCIENCE · 10TH GRADE Name Date Label the diagram, then write what each part does. DNA Replication 1. adenine 2. thymine 3. guanine 4. cytosine 5. double helix 6. nucleotide Word Bank — write what each does: guanine thymine cytosine nucleotide double helix adenine Notes: www.littleactivity.com 10th Grade · Science
Observation Log — Macronutrients SCIENCE · 10TH GRADE Name Date Record your macronutrients observations. Macronutrients Observation Log What to observe: • what you see • what you measure • any changes • questions you have Day Drawing Notes Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Energy Balance SCIENCE · 10TH GRADE Name Date Record your energy balance observations. Energy Balance Observation Log What to observe: • what you see • what you measure • any changes • questions you have Day Drawing Notes Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Planning Balanced Meals On A Budget SCIENCE · 10TH GRADE Name Date Record your planning balanced meals on a budget observations. Planning Balanced Meals On A Budget Observation Log What to observe: • ground conditions • daylight length • height or width • how many buds or flowers Day Drawing Notes Day 1 sketch Three buds opened, two bees visiting, soil dry Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Training Principles SCIENCE · 10TH GRADE Name Date Record your training principles observations. Training Principles Observation Log What to observe: • exercise / activity done • reps or duration • heart rate / effort level • how I felt after Time Sketch What I noticed Day 1 sketch 10 push-ups, 20 jumping jacks — felt energized Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Progression SCIENCE · 10TH GRADE Name Date Record your progression observations. Progression Observation Log What to observe: • what you see • what you measure • any changes • questions you have Time Sketch What I noticed Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Heart Rate Zones SCIENCE · 10TH GRADE Name Date Record your heart rate zones observations. Heart Rate Zones Observation Log What to observe: • pulse after activity • time to recover • activity done • how I felt Time Sketch What I noticed Day 1 sketch Resting 78, after skipping 126, back to 84 in 3 min Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Substance Awareness SCIENCE · 10TH GRADE Name Date Record your substance awareness observations. Substance Awareness Observation Log What to observe: • key concept learned • steps or procedures • why it matters • questions I have Date What it looked like Measurement Day 1 sketch Learned 3 steps of CPR: check, call, compress Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Refusal Skills SCIENCE · 10TH GRADE Name Date Record your refusal skills observations. Refusal Skills Observation Log What to observe: • what you see • what you measure • any changes • questions you have Trial Drawing Result Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Relationships SCIENCE · 10TH GRADE Name Date Record your relationships observations. Relationships Observation Log What to observe: • what you see • what you measure • any changes • questions you have Time Sketch What I noticed Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Consent SCIENCE · 10TH GRADE Name Date Record your consent observations. Consent Observation Log What to observe: • what you see • what you measure • any changes • questions you have Trial Drawing Result Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Mental Health Strategies SCIENCE · 10TH GRADE Name Date Record your mental health strategies observations. Mental Health Strategies Observation Log What to observe: • key concept learned • steps or procedures • why it matters • questions I have Trial Drawing Result Day 1 sketch Learned 3 steps of CPR: check, call, compress Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Personal Health Goal Tracking SCIENCE · 10TH GRADE Name Date Record your personal health goal tracking observations. Personal Health Goal Tracking Observation Log What to observe: • what you see • what you measure • any changes • questions you have Day Drawing Notes Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Choosing Variables SCIENCE · 10TH GRADE Name Date Complete this lab report for your investigation. Purpose / Research Question: What are variables and how do they store data? Materials: computer, code editor, practice exercises Hypothesis (If... then... because...): Write your own: If I change ___, then ___ because ___ Independent Variable: Variable name and value assigned Dependent Variable: What the program outputs using the variable Procedure: 1. Learn what a variable is 2. 3. Use the variable in your program 4. 5. Try different data types Data / Results: Variable Name Value Data Type score name Conclusion: What could have made this test unfair? www.littleactivity.com 10th Grade · Science
Controls SCIENCE · 10TH GRADE Name Date Complete this lab report for your investigation. Purpose / Research Question: Which paper towel soaks up the most water? Materials: 3 brands of paper towel, measuring jug, water, tray, timer Hypothesis (If... then... because...): Write your own: If I change ___, then ___ because ___ Independent Variable: The brand of paper towel Dependent Variable: Millilitres of water soaked up in 10 seconds Procedure: 1. Pour 100 ml of water into the tray 2. 3. Squeeze it into the jug and measure 4. 5. Compare the three amounts Data / Results: Towel Water soaked (ml) Notes Brand A Brand B Brand C Trial 4 Conclusion: The most absorbent towel was... because... www.littleactivity.com 10th Grade · Science
Error Analysis SCIENCE · 10TH GRADE Name Date Record your data in the table. Graph your results. Error Analysis Item Observation Measurement Notes Sample 1 Describe it Record data What happened Graph: Results Samples Conclusion: Based on my data, I can conclude that... www.littleactivity.com 10th Grade · Science
Writing Conclusions That Answer The Question SCIENCE · 10TH GRADE Name Date Record your experiment observations below. Writing Conclusions That Answer The Question Question / Hypothesis: How do you draw a conclusion from data? Materials Needed: • completed data table • graph paper • ruler • calculator Steps / Procedure: 1. Look at the table for a pattern 2. Graph the data 3. State what the pattern shows 4. Compare it with your hypothesis What I Observed: Pattern seen Supports hypothesis? Conclusion: My conclusion is supported by... The data cannot tell me... www.littleactivity.com 10th Grade · Science
Observation Log — Writing Testable Hypotheses SCIENCE · 10TH GRADE Name Date Record your writing testable hypotheses observations. Writing Testable Hypotheses Observation Log What to observe: • what you see • what you measure • any changes • questions you have Day Drawing Notes Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Choosing Variables SCIENCE · 10TH GRADE Name Date Record your choosing variables observations. Choosing Variables Observation Log What to observe: • what you see • what you measure • any changes • questions you have Time Sketch What I noticed Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Controls SCIENCE · 10TH GRADE Name Date Record your controls observations. Controls Observation Log What to observe: • what you see • what you measure • any changes • questions you have Trial Drawing Result Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Sampling SCIENCE · 10TH GRADE Name Date Record your sampling observations. Sampling Observation Log What to observe: • what you see • what you measure • any changes • questions you have Time Sketch What I noticed Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Replication SCIENCE · 10TH GRADE Name Date Record your replication observations. Replication Observation Log What to observe: • what you see • what you measure • any changes • questions you have Day Drawing Notes Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Precision Versus Accuracy SCIENCE · 10TH GRADE Name Date Record your precision versus accuracy observations. Precision Versus Accuracy Observation Log What to observe: • what you see • what you measure • any changes • questions you have Date What it looked like Measurement Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Uncertainty SCIENCE · 10TH GRADE Name Date Record your uncertainty observations. Uncertainty Observation Log What to observe: • what you see • what you measure • any changes • questions you have Trial Drawing Result Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Error Analysis SCIENCE · 10TH GRADE Name Date Record your error analysis observations. Error Analysis Observation Log What to observe: • what you see • what you measure • any changes • questions you have Day Drawing Notes Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Choosing Graphs SCIENCE · 10TH GRADE Name Date Record your choosing graphs observations. Choosing Graphs Observation Log What to observe: • what you see • what you measure • any changes • questions you have Date What it looked like Measurement Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Drawing Trend Lines SCIENCE · 10TH GRADE Name Date Record your drawing trend lines observations. Drawing Trend Lines Observation Log What to observe: • what you see • what you measure • any changes • questions you have Trial Drawing Result Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Evaluating Method SCIENCE · 10TH GRADE Name Date Record your evaluating method observations. Evaluating Method Observation Log What to observe: • what you see • what you measure • any changes • questions you have Date What it looked like Measurement Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Reliability SCIENCE · 10TH GRADE Name Date Record your reliability observations. Reliability Observation Log What to observe: • what you see • what you measure • any changes • questions you have Trial Drawing Result Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Writing Conclusions That Answer The Question SCIENCE · 10TH GRADE Name Date Record your writing conclusions that answer the question observations. Writing Conclusions That Answer The Question Observation Log What to observe: • what you see • what you measure • any changes • questions you have Trial Drawing Result Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Momentum SCIENCE · 10TH GRADE Name Date Record your experiment observations below. Momentum Question / Hypothesis: What happens to momentum when objects collide? Materials Needed: • marbles of two sizes • grooved ruler or track • balance scale • metre rule Steps / Procedure: 1. Weigh both marbles 2. Roll the small marble into the large one 3. Measure how far the target moves 4. Swap and roll the large into the small What I Observed: Rolling marble Mass (g) Small Large Conclusion: Momentum depends on mass and velocity, so the larger marble... www.littleactivity.com 10th Grade · Science
Quantitative Lab Investigations SCIENCE · 10TH GRADE Name Date Complete this lab report for your investigation. Purpose / Research Question: Which liquid keeps a cut apple from turning brown? Materials: apple, knife (adult), lemon juice, water, milk, vinegar, 4 saucers, timer Hypothesis (If... then... because...): Write your own: If I change ___, then ___ because ___ Independent Variable: The liquid brushed onto the apple slice Dependent Variable: How brown the slice looks after 1 hour Procedure: 1. Cut four slices of the same size 2. 3. Leave all four on saucers in the same place 4. 5. Score the browning from 0 to 5 Data / Results: Liquid 20 min 60 min None (control) Lemon juice Water Conclusion: Now change one other thing and predict what happens. www.littleactivity.com 10th Grade · Science
Momentum SCIENCE · 10TH GRADE Name Date Read the passage, then answer the questions below. Momentum is mass times velocity, p = mv, measured in kilogram metres per second. It explains why a slow, heavy object can be as hard to stop as a fast, light one: a 2,000 kg van at 5 m/s and a 50 kg scooter at 200 m/s both carry 10,000 kg·m/s. In a collision, total momentum is conserved, meaning the total before equals the total after, as long as no outside force acts. That is why a stationary ball moves off when struck and the striking ball slows. Because a force applied over time changes momentum, spreading a collision over a longer time lowers the force — the principle behind crumple zones and air bags. Questions: 1 Write the equation for momentum and give its unit. 2 What does it mean to say momentum is conserved in a collision? 3 Why do crumple zones reduce the force on passengers? www.littleactivity.com 10th Grade · Science
Observation Log — Vectors SCIENCE · 10TH GRADE Name Date Record your vectors observations. Vectors Observation Log What to observe: • what you see • what you measure • any changes • questions you have Day Drawing Notes Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Components SCIENCE · 10TH GRADE Name Date Record your components observations. Components Observation Log What to observe: • what you see • what you measure • any changes • questions you have Trial Drawing Result Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Projectile Motion SCIENCE · 10TH GRADE Name Date Record your projectile motion observations. Projectile Motion Observation Log What to observe: • what slowed it down • time taken • ramp height or angle • starting position Time Sketch What I noticed Day 1 sketch Travelled 82 cm in 2.1 s down a 15 cm ramp Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Circular Motion SCIENCE · 10TH GRADE Name Date Record your circular motion observations. Circular Motion Observation Log What to observe: • ramp height or angle • surface used • what slowed it down • starting position Date What it looked like Measurement Day 1 sketch Travelled 82 cm in 2.1 s down a 15 cm ramp Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Centripetal Force SCIENCE · 10TH GRADE Name Date Record your centripetal force observations. Centripetal Force Observation Log What to observe: • time taken • starting position • what slowed it down • surface used Trial Drawing Result Day 1 sketch Travelled 82 cm in 2.1 s down a 15 cm ramp Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Energy SCIENCE · 10TH GRADE Name Date Record your energy observations. Energy Observation Log What to observe: • what you see • what you measure • any changes • questions you have Day Drawing Notes Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Power SCIENCE · 10TH GRADE Name Date Record your power observations. Power Observation Log What to observe: • what you see • what you measure • any changes • questions you have Date What it looked like Measurement Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Conservation Of Energy SCIENCE · 10TH GRADE Name Date Record your conservation of energy observations. Conservation Of Energy Observation Log What to observe: • what was used • where it went • how much • measured over how long Trial Drawing Result Day 1 sketch Four plastic bottles in one day; all recyclable Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Momentum SCIENCE · 10TH GRADE Name Date Record your momentum observations. Momentum Observation Log What to observe: • what you see • what you measure • any changes • questions you have Day Drawing Notes Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Elastic SCIENCE · 10TH GRADE Name Date Record your elastic observations. Elastic Observation Log What to observe: • what you see • what you measure • any changes • questions you have Time Sketch What I noticed Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Inelastic Collisions SCIENCE · 10TH GRADE Name Date Record your inelastic collisions observations. Inelastic Collisions Observation Log What to observe: • what you see • what you measure • any changes • questions you have Date What it looked like Measurement Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Simple Machines SCIENCE · 10TH GRADE Name Date Record your simple machines observations. Simple Machines Observation Log What to observe: • what you see • what you measure • any changes • questions you have Trial Drawing Result Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Efficiency SCIENCE · 10TH GRADE Name Date Record your efficiency observations. Efficiency Observation Log What to observe: • what you see • what you measure • any changes • questions you have Date What it looked like Measurement Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Observation Log — Quantitative Lab Investigations SCIENCE · 10TH GRADE Name Date Record your quantitative lab investigations observations. Quantitative Lab Investigations Observation Log What to observe: • what you see • what you measure • any changes • questions you have Date What it looked like Measurement Day 1 sketch First observation — everything looks normal Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com 10th Grade · Science
Atomic structure and periodic trends SCIENCE · 10TH GRADE Name Date TAKE-HOME PRACTICE Science · 10th Grade 30 minutes WHAT THIS BUILDS Uses the periodic table to predict properties, and explains trends by electron arrangement. 1 THE TWO-MINUTE CHECK ASK "Why is sodium more reactive than magnesium? Why does atomic radius shrink across a period?" A SOLID ANSWER Reasons about outer electrons and nuclear charge, not memorised statements. Not yet Getting there Solid 2 PREDICT BEFORE YOU LOOK You need: A periodic table, Paper Cover the data and predict which of two elements is more reactive, larger, or a better conductor. Write the reasoning before checking. Check against real data and mark where the reasoning failed, not just the answer. Draw electron arrangements for the first twenty elements and connect them to group behaviour. Find real-world evidence: why sodium is stored in oil, why noble gases fill light bulbs. SAY THIS WHEN IT STALLS "Don't tell me the trend — tell me why the trend has to be that way." Predict within one group. Explain an anomaly in a trend and find out why it exists. IF IT'S TOO HARD IF IT'S TOO EASY Did it M T W T F Full year of take-homes: www.littleactivity.com/takehome/grade-10 www.littleactivity.com 10th Grade · Science
Bonding, reactions and balancing equations SCIENCE · 10TH GRADE Name Date TAKE-HOME PRACTICE Science · 10th Grade 30 minutes WHAT THIS BUILDS Predicts bond types, writes and balances equations, and explains balancing by conservation of atoms. 1 THE TWO-MINUTE CHECK ASK "Balance the combustion of methane. Why can't you just change the subscripts?" A SOLID ANSWER CH₄ + 2O₂ → CO₂ + 2H₂O, and knows subscripts define the substance itself. Not yet Getting there Solid 2 COUNT THE ATOMS You need: Paper, Counters or beads in two colours Model a reaction with beads: the same beads must appear on both sides, rearranged. Balance by counting each element in a table, one row per element. Show what happens if a subscript is changed — it becomes a different substance entirely. Balance five equations of increasing difficulty using the table method. Do a real one: vinegar and baking soda, weighed sealed to confirm conservation. SAY THIS WHEN IT STALLS "Changing the subscript makes it a different chemical. You can only change how many molecules there are." Two-element equations with a counting table. Combustion of larger hydrocarbons, and ionic equations. IF IT'S TOO HARD IF IT'S TOO EASY Did it M T W T F Full year of take-homes: www.littleactivity.com/takehome/grade-10 www.littleactivity.com 10th Grade · Science
Moles, concentration and acids and bases SCIENCE · 10TH GRADE Name Date TAKE-HOME PRACTICE Science · 10th Grade 30 minutes WHAT THIS BUILDS Uses the mole as a counting unit, calculates concentration, and explains the pH scale. 1 THE TWO-MINUTE CHECK ASK "How many moles in 36 g of water? How many times more acidic is pH 3 than pH 6?" A SOLID ANSWER 2 moles, and 1,000 times — knowing the scale is logarithmic. Not yet Getting there Solid 2 COUNT BY WEIGHING You need: Kitchen scales, Rice or paperclips, Red cabbage indicator, Household liquids Weigh 100 grains of rice, then use the mass to count a bag without counting — that's exactly the mole idea. Apply it: molar mass lets you count atoms by weighing. Calculate moles for three real substances from the kitchen. Make a red cabbage indicator and test household liquids, ranking them by colour. Dilute one tenfold, retest, and see the pH move by one — the logarithmic scale, demonstrated. SAY THIS WHEN IT STALLS "You counted the rice by weighing it. That's the whole idea of the mole — nothing more mysterious than that." Mole calculations from given molar masses. Stoichiometry: predict the mass of product from a given mass of reactant. IF IT'S TOO HARD IF IT'S TOO EASY Did it M T W T F Full year of take-homes: www.littleactivity.com/takehome/grade-10 www.littleactivity.com 10th Grade · Science
