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Lesson 4 of 10 · Sink and Float

Lesson30 XP

Light and Heavy

Light and Heavy
🧪Lab Brief #4

Sink and Float.

🎯 Your mission

Understand the idea. Then look for it everywhere.

⚡ The twist

Nature loves to surprise the careful watcher.

🤯

Mind = Blown

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

🔮

Make a hypothesis first

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

What You'll Learn

Feathers are light and rocks are heavy. How do you know which is heavier?

Key Words

Tap a word to see its definition.

Steps

Step 1Read

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

Step 2Do

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

Step 3Observe

Did anything change? Point to what is different.

Step 4Record

Point to the things you used in the activity.

Check Your Understanding

Question 1

1 of 2

Does a rock sink in water?

🌍

Where you see this in real life

This shows up in your everyday life more than you'd think.

🏆

Stretch Challenge

Try this in real life 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?

🎯

Next Smart Experiment

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

Share card

Share this experiment

Send it to a parent who's looking for a 10-minute kitchen science win.

Ready?

Light and Heavy

Understand the idea. Then look for it everywhere.

Full screen — no distractions

🖨️

Checkout complete lesson on Sink and Float for Pre-School

Get the full Sink and Float track as a printable PDF — all lessons, worksheets, and answer keys.

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Light and Heavy — Sink and Float | Pre-School Science | LittleActivity