28
Lesson 28 of 84 · Earth Systems
ExperimentVolcanoes: Hot Rock!
What You'll Learn
Layers of rock tell the story of Earth's history. Older layers are at the bottom!
Key Words
- desert
- forest
Materials Needed
- rain gauge
- cotton balls
- food coloring
Safety First
- Work in a well-ventilated area when using vinegar or other strong-smelling substances.
- Dispose of materials properly after the experiment.
- Handle glass items carefully to avoid breakage.
Steps
Step 1 — Read
Read and learn: Layers of rock tell the story of Earth's history. Older layers are at the bottom!
Step 2 — Do
Try the experiment. What do you think will happen?
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 3Where can you find fossils?