The Salty Ocean

Lab Brief #13

🎯 Your mission

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

⚡ The twist

Today's mountain was yesterday's ocean floor.

What you'll learn

The ocean covers most of Earth's surface. Ocean water is salty!

Key words

ocean
A huge body of salty water covering much of Earth.

Make a hypothesis first

Guess: where will the water go first?

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

Use your senses to describe what you notice.

Step 4 of 4 · Record

Write 1-2 sentences about what happened.

Question 1 of 3

How much of Earth's surface does the ocean cover?

How sure are you?😐 maybe

Question 2 of 3

What does ocean water taste like?

How sure are you?😐 maybe

Question 3 of 3

Is ocean water safe to drink?

How sure are you?😐 maybe

Mind = blown

🌋 There are 1,500 active volcanoes on Earth right now.

Nice work!

You got 0 of 3 right.

Next: How a Compass Works All lessons

🎯

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✨ More to explore

🌍 Where you see this in real life: This is shaping the ground you walk on, slowly, every single day.

🏆 Stretch challenge (try it this week): Find a rock outside and try to guess how old it is.

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

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