Lesson 67 of 84 · Sink and Float

Experiment⭐ 30 XP

Hot and Cold Things (Part 3)

🧪Lab Brief #67

Sink and Float.

🎯 Your mission

Set it up. Test it. Be amazed.

⚡ 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

Some things are smooth, some are rough. Touch different objects and feel the difference!

Key Words

melt
freeze
hot

Materials Needed

ice cubes
salt
sugar
vinegar
baking soda

Safety First

Do not look directly at the sun or bright lights.
Clean up spills immediately to prevent slipping.

Steps

Step 1 — Read

Talk about Sink and Float with a grown-up. What do you already know?

Step 2 — Do

Mix two colors of paint together. What new color did you make?

Step 3 — Observe

What happened? Tell a grown-up what you noticed.

Step 4 — Record

Tell a grown-up your favorite part of the activity.

Check Your Understanding

Question 1

1 of 3

Can you pour water?

How sure are you going to be?😐 maybe

🌍

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.

🖨️

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