Warm Air Rises

Lab Brief #10

🎯 Your mission

Predict it first. Then prove yourself right (or wrong).

⚡ The twist

The slowest changes are the biggest ones.

What you'll learn

The sun warms the land and water, which warms the air. Warm air rises and cool air sinks.

Key words

cloud
A group of tiny water droplets floating high in the sky.
rain
Water drops that fall from clouds down to the ground.

Make a hypothesis first

Predict: which will erode faster?

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

Get ready

🧰 What you need

water
plastic tray

⚠️ Safety first

Mop up spills straight away so nobody slips, and keep liquids away from sockets.

Step 1 of 4 · Read

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

Step 2 of 4 · Do

Make a mini water cycle: put warm water in a bowl, cover it with plastic wrap, and place an ice cube on top. Watch what happens.

Step 3 of 4 · Observe

Watch carefully. What happens?

Step 4 of 4 · Record

Draw and write about what you learned.

Question 1 of 3

What happens when the sun heats water?

How sure are you?😐 maybe

Question 2 of 3

What causes wind?

How sure are you?😐 maybe

Question 3 of 3

What is soil made of?

How sure are you?😐 maybe

Mind = blown

🌊 The deepest part of the ocean is deeper than Mount Everest is tall.

Nice work!

You got 0 of 3 right.

Next: Spinning Tornadoes All lessons

🎯

Next Smart Experiment

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

✨ More to explore

🌍 Where you see this in real life: Today's weather, tomorrow's beach, next century's coastline — all this.

🏆 Stretch challenge (try it this week): Look at the sky for 5 minutes and try to predict tomorrow's weather.

👨‍👩‍👧 For the dinner table: “What's the slowest change you can think of?”

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