Sand at the Beach

Lab Brief #9

🎯 Your mission

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

⚡ The twist

The slowest changes are the biggest ones.

What you'll learn

Sand is tiny pieces of rock. You can find sand at the beach!

Key words

rock
A hard, solid piece of the Earth made of minerals.
sand
Tiny bits of worn-down rock found on beaches and deserts.

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

rocks
sand

⚠️ Safety first

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

Step 1 of 4 · Read

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

Step 2 of 4 · Do

Feel different types of dirt, sand, and rocks. Which is smoothest?

Step 3 of 4 · Observe

Look closely! What do you see?

Step 4 of 4 · Record

Draw a picture of what you learned today.

Question 1 of 3

What is sand made of?

Question 2 of 3

Where can you find lots of sand?

Question 3 of 3

Is one grain of sand big or tiny?

Mind = blown

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

Nice work!

You got 0 of 3 right.

Next: Fly a Kite!All lessons

🎯

Next Smart Experiment

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✨ 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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