18
Lesson 18 of 84 · Matter
ExperimentComparing Textures
What You'll Learn
Rocks are made of minerals. Different minerals make rocks look different colors and textures.
Key Words
- weight
- measure
- temperature
Materials Needed
- sugar
- vinegar
- baking soda
Safety First
- Protect your work surface with newspaper or plastic.
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 3Which is a solid?