80
Lesson 80 of 84 · Matter
ExperimentMaterials All Around Us (Part 3)
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
- baking soda
- cups
- spoons
- food coloring
Safety First
- Do not mix unknown chemicals together.
- Tie back long hair before starting the experiment.
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?