25
Lesson 25 of 84 · Engineering and Design
ExperimentForming a Hypothesis (Part 2)
What You'll Learn
A hypothesis is a testable prediction about what will happen in an experiment. A good hypothesis is specific and based on prior knowledge or observations.
Key Words
- variable
- control
Materials Needed
- popsicle sticks
- pennies
- plastic wrap
- cardboard
Safety First
- Do not taste any materials.
- Wear safety goggles when mixing liquids.
- Wash hands after handling materials.
Steps
Step 1 — Read
Read and learn: A hypothesis is a testable prediction about what will happen in an experiment. A good hypothesis is specific and based on prior knowledge or observations.
Step 2 — Do
Build your model using the materials provided.
Step 3 — Observe
Use your senses (except taste) to describe what you notice.
Step 4 — Record
Write a summary of your findings in 3-5 sentences.
Check Your Understanding
Question 1
1 of 3What is the dependent variable?