Lesson 30 of 30 · Simple Machines

Lesson⭐ 30 XP🛠️ Engineer Shop

Wheels Move Toys

🧪Lab Brief #30

Simple Machines.

🎯 Your mission

Master the concept. Use it tomorrow.

⚡ The twist

Every solution creates a new problem. That's good — that's the next project.

🤯

Mind = Blown

🌉 The Eiffel Tower can grow 6 inches taller in summer because metal expands when hot.

🔮

Make a hypothesis first

Predict: which design will hold the most weight?

What You'll Learn

Toys with wheels are easier to move across the floor than toys without wheels.

Key Words

Tap a word to see its definition.

Steps

Step 1 — Read

Say the vocabulary words out loud. Can you repeat them?

Step 2 — Do

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

Step 3 — Observe

Use your eyes, ears, and hands to explore. What do you notice?

Step 4 — Record

Color a picture to show what happened.

Check Your Understanding

Question 1

1 of 3

What do wheels help us do?

How sure are you going to be?😐 maybe

🌍

Where you see this in real life

Every bridge, building, and gadget you've ever used started with this.

🏆

Stretch Challenge

Try this in real life this week.

Find something that's broken at home and try to figure out *why* it broke.

👨‍👩‍👧

For the dinner table

“What's something around the house you'd redesign — and how?”

🎯

Next Smart Experiment

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

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Share this experiment

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

Back

Ready?

Wheels Move Toys

Master the concept. Use it tomorrow.

Full screen — no distractions

🖨️

Checkout complete lesson on Simple Machines for Pre-School

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Wheels Move Toys

What You'll Learn

Key Words

Steps

Check Your Understanding

Question 1

Where you see this in real life

Stretch Challenge

For the dinner table

Next Smart Experiment

Share this experiment

Wheels Move Toys

Done with science? Try something else

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