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Lesson 82 of 84 · Forces
ExperimentMaking a Catapult (Part 3)
What You'll Learn
Gravity is the same force that keeps the moon going around the Earth!
Key Words
- energy
- push
Materials Needed
- rubber bands
- blocks
- spring scale
- stopwatch
- pencils
- toy cars
Safety First
- Keep small objects away from young children.
- Work in a well-ventilated area when using vinegar or other strong-smelling substances.
Steps
Step 1 — Read
Look at the new words. Can you say each one?
Step 2 — Do
Make a ramp from a book. Roll a marble down from different heights. Measure how far it rolls.
Step 3 — Observe
Use your senses to describe what you notice.
Step 4 — Record
Write 1-2 sentences about what happened.
Check Your Understanding
Question 1
1 of 3What are the two poles of a magnet?