The Bike Slows Down

Lab Brief #12

🎯 Your mission

Master the concept. Use it tomorrow.

⚡ The twist

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

What you'll learn

When you stop pedaling a bike, it slowly stops because of friction.

Key words

Make a hypothesis first

Predict: which design will hold the most weight?

Say your guess out loud — then find out if you were right.

Step 1 of 3 · Read

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

Step 2 of 3 · Observe

Draw a picture of what you see.

Step 3 of 3 · Record

Share what you learned with someone!

Question 1 of 3

What happens when you stop pedaling a bike?

Question 2 of 3

What makes the bike slow down?

Question 3 of 3

How do you make a bike go?

Mind = blown

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

Nice work!

You got 0 of 3 right.

🎯

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

✨ More to explore

🌍 Where you see this in real life: Every bridge, building, and gadget you've ever used started with this.

🏆 Stretch challenge (try it 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?”

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

Your Cart (0)