Lesson 19 of 30 · Forces

Experiment⭐ 30 XP⚡ Spark Lab

Levers and Seesaws

🧪Lab Brief #19

Levers and Seesaws.

🎯 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

A lever is a simple machine. A seesaw is a lever—push down on one end and the other goes up!

Key Words

Tap a word to see its definition.

Materials Needed

ruler
pencils

Safety First

Have an adult check your set-up before you start, and tidy everything away afterwards.

Steps

Step 1 — Read

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

Step 2 — Do

Build a simple lever with a ruler and pencil. Try lifting objects on one end by pushing the other.

Step 3 — Observe

Compare what happened to what you predicted.

Step 4 — Record

Tell the class one thing you learned today.

Check Your Understanding

Question 1

1 of 3

Which simple machine is a ramp?

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.

🏆

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 card

Share this experiment

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

Back

Ready?