States of Matter: Liquids and Flow

What You'll Learn

Matter is made of tiny particles that are always in motion. In solids, particles vibrate in place; in liquids, they slide past each other; in gases, they move freely.

Key Words

atom
proton

Materials Needed

sugar
vinegar
baking soda

Safety First

Adult supervision recommended.
Do not taste any materials.
Wear safety goggles when mixing liquids.

Steps

Step 1 — Read

Look at the vocabulary words and write a definition for each in your own words.

Step 2 — Do

Separate a mixture of sand, salt, and iron filings using a magnet, water, and a filter. Record each step and what you separated.

Step 3 — Observe

Watch carefully for any changes and note the time.

Step 4 — Record

Create a data table to organize your measurements.

Check Your Understanding

Question 1

1 of 3

Which state of matter has a definite shape and volume?