58
Lesson 58 of 84 · Matter
ExperimentMaking Predictions: Sink or Float (Part 2)
What You'll Learn
Cotton absorbs water, but plastic does not. That is why raincoats are made of plastic!
Key Words
- property
- matter
Materials Needed
- spoons
- food coloring
- plastic bottles
- balloons
Safety First
- Do not look directly at the sun or bright lights.
- Clean up spills immediately to prevent slipping.
- Use materials only as directed in the experiment.
Steps
Step 1 — Read
Read the introduction. What is this lesson about?
Step 2 — Do
Mix salt into warm water and cold water. Stir 20 times each. Which dissolves faster?
Step 3 — Observe
Look for something that changed. What is it?
Step 4 — Record
Circle the correct answer on your worksheet.
Check Your Understanding
Question 1
1 of 3Is air made of matter?