Lesson 34 of 84 ยท Properties of Matter
Experimentโญ 30 XP๐งช Potion KitchenCatalysts: Speeding Up Reactions
Properties of Matter.
๐ฏ Your mission
Run the experiment. Find out what really happens.
โก The twist
Color changes mean atoms are rearranging โ even if you can't see them.
Mind = Blown
๐ Every color you see is your brain inventing a translation of light frequencies.
Make a hypothesis first
Before you mix: what color do you think it'll turn?
What You'll Learn
Matter exists in three common states: solid, liquid, and gas. Solids have a fixed shape and volume, liquids have a fixed volume but take the shape of their container, and gases fill any container.
Key Words
- solid
- liquid
- molecule
Materials Needed
- vinegar
- baking soda
- cups
- spoons
Safety First
- Tie back long hair before starting the experiment.
Steps
Review the background information on Properties of Matter before starting.
Separate a mixture of sand, salt, and iron filings using a magnet, water, and a filter. Record each step and what you separated.
Compare the before and after states.
Write your conclusion: did the results match your hypothesis? What would you change next time?
Check Your Understanding
Question 1
1 of 3Which is an example of a chemical change?
Where you see this in real life
Your toothpaste, your soap, even your breakfast involves this.
Stretch Challenge
Try this in real life this week.
Ask a grown-up to help you mix two safe kitchen things. Predict what will happen first.
For the dinner table
โWhat's something we cook that mixes things together this way?โ
Next Smart Experiment
We'll pick an experiment that matches exactly how you're thinking right now.
Share this experiment
Send it to a parent who's looking for a 10-minute kitchen science win.
Checkout complete lesson on Properties of Matter for 4th Grade
Get the full Properties of Matter track as a printable PDF โ all lessons, worksheets, and answer keys.
