Lesson 20 of 84 · Forces
Experiment⭐ 30 XP⚡ Spark LabSlide or Roll?
Slide or Roll?.
🎯 Your mission
Set it up. Test it. Be amazed.
⚡ The twist
Speed isn't the same as force. Don't mix them up.
Mind = Blown
🔥 A bolt of lightning is 5 times hotter than the surface of the sun.
Make a hypothesis first
Guess: where does the energy go?
What You'll Learn
Springs store energy when you squish or stretch them. When you let go, they bounce back!
Key Words
- pulley
- wheel
- energy
Materials Needed
- cardboard
- marbles
- paper clips
Safety First
- Protect your work surface with newspaper or plastic.
Steps
Talk about what you already know about Forces.
Build a simple lever with a ruler and pencil. Try lifting objects on one end by pushing the other.
Compare what happened to what you predicted.
Tell the class one thing you learned today.
Check Your Understanding
Question 1
1 of 3Why do things fall when you drop them?
Where you see this in real life
This is why airplanes can fly and why rockets reach space.
Stretch Challenge
Try this in real life this week.
This week, find one thing in your house that turns one kind of energy into another.
For the dinner table
“Show me something at home that uses this kind of energy.”
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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