72

Lesson 72 of 84 ยท Chemical Reactions

Experiment

States of Matter: Liquids and Flow (Part 3)

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
  • neutron

Materials Needed

  • food coloring
  • plastic bottles
  • balloons
  • measuring cups
  • paper towels

Safety First

  • Dispose of materials properly after the experiment.
  • Handle glass items carefully to avoid breakage.
  • Do not mix unknown chemicals together.

Steps

Step 1 โ€” Read

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

Step 2 โ€” 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 โ€” Observe

Watch carefully for any changes and note the time.

Step 4 โ€” 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?

States of Matter: Liquids and Flow (Part 3) โ€” Chemical Reactions | 7th Grade Science | LittleActivity | LittleActivity