Lesson 35 of 84 · Matter

Lesson⭐ 30 XP🧪 Potion Kitchen

Sink or Float Experiment (Part 2)

🧪Lab Brief #35

Sink or Float Experiment (Part 2).

🎯 Your mission

Understand the idea. Then look for it everywhere.

⚡ The twist

If it bubbles, something invisible is escaping.

🤯

Mind = Blown

🧪 If you could remove all the empty space from atoms, the entire human race would fit in a sugar cube.

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Make a hypothesis first

Guess: will the fizz be loud, soft, or none at all?

What You'll Learn

Objects float or sink depending on their density—how heavy they are for their size.

Key Words

gas
melt

Steps

Step 1 — Read

Talk about what you already know about Matter.

Step 2 — Do

Stretch, bend, and tear different materials (paper, foil, rubber band). Record what happens to each.

Step 3 — Observe

Compare what happened to what you predicted.

Step 4 — Record

Tell the class one thing you learned today.

Check Your Understanding

Question 1

1 of 3

Why does a heavy rock sink in water?

How sure are you going to be?😐 maybe

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Where you see this in real life

Your toothpaste, your soap, even your breakfast involves this.

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Stretch Challenge

Try this in real life this week.

Ask a grown-up to help you mix two safe kitchen things. Predict what will happen first.

👨‍👩‍👧

For the dinner table

“What's something we cook that mixes things together this way?”

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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.

🖨️

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