20
Lesson 20 of 84 · Earth Systems
ExperimentNatural Resources and Conservation
What You'll Learn
Natural resources include materials from Earth that people use. Renewable resources (trees, solar energy) can be replenished. Nonrenewable resources (coal, oil) are limited.
Key Words
- fossil
- mineral
Materials Needed
- cotton balls
- food coloring
- clear container
- rocks
- sand
- clay
Safety First
- Tie back long hair before starting the experiment.
- Protect your work surface with newspaper or plastic.
Steps
Step 1 — Read
Read and learn: Natural resources include materials from Earth that people use. Renewable resources (trees, solar energy) can be replenished. Nonrenewable resources (coal, oil) are limited.
Step 2 — Do
Conduct the experiment by following the instructions.
Step 3 — Observe
Compare the before and after states.
Step 4 — Record
Write your conclusion: did the results match your hypothesis?
Check Your Understanding
Question 1
1 of 3What is a natural resource?