Lesson 67 of 84 · Forces

Experiment⭐ 30 XP⚡ Spark Lab

Sliding and Rolling (Part 3)

🧪Lab Brief #67

Sliding and Rolling (Part 3).

🎯 Your mission

Set it up. Test it. Be amazed.

⚡ The twist

Energy never disappears — it just hides somewhere else.

🤯

Mind = Blown

🎢 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

When you kick a ball, you push it with your foot and it moves forward.

Key Words

roll
slide
stop

Materials Needed

spring scale
stopwatch
pencils
toy cars

Safety First

Wear safety goggles when mixing liquids.
Wash hands after handling materials.

Steps

Step 1 — Read

Talk about Forces with a grown-up. What do you already know?

Step 2 — Do

Try pulling a wagon with one hand, then two hands. Which is easier?

Step 3 — Observe

What happened? Tell a grown-up what you noticed.

Step 4 — Record

Tell a grown-up your favorite part of the activity.

Check Your Understanding

Question 1

1 of 3

What happens when you drop a ball?

How sure are you going to be?😐 maybe

🌍

Where you see this in real life

This is why airplanes can fly and why rockets reach space.

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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.”

🎯

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