20
Lesson 20 of 84 · Matter
ExperimentMaterials All Around Us
What You'll Learn
Materials can be sorted by their properties: hard or soft, rough or smooth, bendy or stiff.
Key Words
- measure
- temperature
- water
Materials Needed
- paper towels
- thermometer
- strainer
- ice cubes
Safety First
- Wear safety goggles when mixing liquids.
Steps
Step 1 — Read
Talk about what you already know about Matter.
Step 2 — Do
Stretch, bend, and tear different materials (paper, foil, rubber band). Record what happens to each.
Step 3 — Observe
Compare what happened to what you predicted.
Step 4 — Record
Tell the class one thing you learned today.
Check Your Understanding
Question 1
1 of 3Why does a heavy rock sink in water?