Lesson 28 of 84 ยท Forces
Experimentโญ 30 XPโก Spark LabRolling Downhill
Rolling Downhill.
๐ฏ Your mission
Set it up. Test it. Be amazed.
โก The twist
Energy never disappears โ it just hides somewhere else.
Mind = Blown
๐ข You feel weightless on a roller coaster because you and the seat are falling at the same speed.
Make a hypothesis first
Before you start: which will move faster, and why?
What You'll Learn
A ball thrown in the air comes back down because gravity pulls it.
Key Words
- move
- still
- push
Materials Needed
- tape
- ruler
- cardboard
Safety First
- Dispose of materials properly after the experiment.
- Handle glass items carefully to avoid breakage.
Steps
Say the vocabulary words out loud. Can you repeat them?
Roll a ball down a ramp. Try making the ramp steeper. What happens?
Use your eyes, ears, and hands to explore. What do you notice?
Color a picture to show what happened.
Check Your Understanding
Question 1
1 of 3What makes a swing go?
Where you see this in real life
You use this every time you flip a light switch, ride a bike, or kick a ball.
Stretch Challenge
Try this in real life this week.
Time how long a small ball rolls down something, then change the slope and try again.
For the dinner table
โShow me something at home that uses this kind of energy.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.
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