Lesson 76 of 84 · Forces

Simulation⭐ 30 XP⚡ Spark Lab

What Makes a Ball Roll? (Part 3)

🧪Lab Brief #76

What Makes a Ball Roll? (Part 3).

🎯 Your mission

Run the sim. Spot the pattern.

⚡ The twist

The opposite of what you expect is often what happens.

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Mind = Blown

🔥 A bolt of lightning is 5 times hotter than the surface of the sun.

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Make a hypothesis first

Predict: what happens if you double the force?

What You'll Learn

When you throw a ball up, gravity pulls it back down. The harder you throw, the higher it goes!

Key Words

lever
ramp

Steps

Step 1 — Read

Read about Forces with a partner or grown-up.

Step 2 — Do

Push a toy car across the carpet, then across a smooth floor. Measure how far it goes each time.

Step 3 — Observe

Watch carefully. What happens?

Step 4 — Record

Draw and write about what you learned.

Check Your Understanding

Question 1

1 of 3

What is gravity?

How sure are you going to be?😐 maybe

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Where you see this in real life

You use this every time you flip a light switch, ride a bike, or kick a ball.

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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.

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For the dinner table

“Show me something at home that uses this kind of energy.”

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Next Smart Experiment

We'll pick an experiment that matches exactly how you're thinking right now.

🌍Share card

Share this experiment

Send it to a parent who's looking for a 10-minute kitchen science win.

🖨️

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