Sink or Float Fun

Lab Brief #3

🎯 Your mission

Master the concept. Use it tomorrow.

⚡ The twist

Nature loves to surprise the careful watcher.

What you'll learn

Some things sink in water and some things float. Try putting different objects in a tub of water to see what happens!

Key words · 1 of 2

water
A clear liquid made of hydrogen and oxygen that living things need.
sink
To go down and settle below the surface of a liquid.

Key words · 2 of 2

float
To rest or stay on top of water or air without sinking.

Make a hypothesis first

Before you start: write down what you think will happen, and why.

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

Step 1 of 4 · Read

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

Step 2 of 4 · Do

Drop a rock and a feather into water. Which one sinks? Which one floats?

Step 3 of 4 · Observe

Use your eyes, ears, and hands to explore. What do you notice?

Step 4 of 4 · Record

Color a picture to show what happened.

Question 1 of 3

Does a rock sink in water?

Question 2 of 3

Does a feather float in water?

Question 3 of 3

Does wood float in water?

Mind = blown

🔬 The more you look, the more nature shows you.

Nice work!

You got 0 of 3 right.

Next: Light and Heavy 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: This shows up in your everyday life more than you'd think.

🏆 Stretch challenge (try it this week): Try one experiment in real life this week — even a tiny one.

👨‍👩‍👧 For the dinner table: “What's the most surprising thing you learned today?”

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