20

Lesson 20 of 84 ยท Earth's History

Lesson

Natural 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

  • erosion
  • weathering

Steps

Step 1 โ€” 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 โ€” Do

Conduct the experiment by following the instructions.

Step 3 โ€” Observe

Compare the before and after states.

Step 4 โ€” Record

Write your conclusion: did the results match your hypothesis?

Check Your Understanding

Question 1

1 of 3

What is a natural resource?