Lesson 24 of 30 · Forces

Lesson⭐ 30 XP⚡ Spark Lab

Friction Makes Heat

🧪Lab Brief #24

Friction Makes Heat.

🎯 Your mission

Master the concept. Use it tomorrow.

⚡ 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 two surfaces rub together, friction produces heat. Rub your hands together to feel it!

Key Words

Tap a word to see its definition.

Steps

Step 1 — Read

Look at the new words. Can you say each one?

Step 2 — Observe

Compare what happened to what you predicted.

Step 3 — Record

Tell the class one thing you learned today.

Check Your Understanding

Question 1

1 of 3

What does friction do?

How sure are you going to be?😐 maybe

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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.

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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.

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

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Ready?