23

Lesson 23 of 84 · Sink and Float

Experiment

Building with Blocks

What You'll Learn

When you blow up a balloon, you fill it with air. Air is a gas!

Key Words

sink
float
color

Materials Needed

strainer
ice cubes
salt
sugar
vinegar

Safety First

Protect your work surface with newspaper or plastic.
Adult supervision recommended.
Do not taste any materials.

Steps

Step 1 — Read

Can you name the things in the picture?

Step 2 — Do

Touch ice and watch it change. What happens when it gets warm?

Step 3 — Observe

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

Step 4 — Record

Color a picture to show what happened.

Check Your Understanding

Question 1

1 of 3

Does a feather float in water?