Why We Have Seasons

Lab Brief #5

🎯 Your mission

Set it up. Test it. Be amazed.

⚡ The twist

The slowest changes are the biggest ones.

What you'll learn

The four seasons—spring, summer, fall, and winter—happen because Earth tilts as it goes around the sun.

Key words

season
One of the four times of year with its own kind of weather.

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

Draw a picture of what you observe.

Step 4 of 4 · Record

Share your results with a partner.

Question 1 of 3

What is the hottest season?

How sure are you?😐 maybe

Question 2 of 3

How many seasons are there?

How sure are you?😐 maybe

Question 3 of 3

What happens when the sun heats water?

How sure are you?😐 maybe

Mind = blown

🪨 Every grain of sand on every beach used to be a mountain.

Nice work!

You got 0 of 3 right.

Next: How Rivers Flow 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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Why We Have Seasons

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