77

Lesson 77 of 84 ยท Earth's History

Experiment

Types of Rocks: Metamorphic (Part 3)

What You'll Learn

The carbon cycle describes how carbon moves through atmosphere, biosphere, oceans, and rocks. Human activities like burning fossil fuels add extra carbon to the atmosphere.

Key Words

  • atmosphere
  • humidity
  • barometer

Materials Needed

  • sand
  • clay
  • water

Safety First

  • Tie back long hair before starting the experiment.
  • Protect your work surface with newspaper or plastic.
  • Adult supervision recommended.

Steps

Step 1 โ€” Read

Read and learn: The carbon cycle describes how carbon moves through atmosphere, biosphere, oceans, and rocks. Human activities like burning fossil fuels add extra carbon to the atmosphere.

Step 2 โ€” Do

Repeat the experiment two more times for accuracy.

Step 3 โ€” Observe

Note any unexpected results.

Step 4 โ€” Record

Share your findings with the class or a partner.

Check Your Understanding

Question 1

1 of 3

How do fossils form?