13
Lesson 13 of 84 · Forces
ExperimentBalls That Bounce
What You'll Learn
Rubber balls bounce because they are stretchy and springy.
Key Words
- heavy
- light
- wheel
Materials Needed
- stopwatch
- pencils
- toy cars
- ramps
- string
Safety First
- Do not taste any materials.
- Wear safety goggles when mixing liquids.
Steps
Step 1 — Read
Read and learn: Rubber balls bounce because they are stretchy and springy.
Step 2 — Do
Touch and explore the materials. What do they feel like?
Step 3 — Observe
Use your eyes, ears, and hands to explore. What do you notice?
Step 4 — Record
Color a picture to show what happened.
Check Your Understanding
Question 1
1 of 3What makes a swing go?