Climate Zones of the World

What You'll Learn

Climate change refers to long-term shifts in temperature and weather patterns. Human activities, especially burning fossil fuels, have increased greenhouse gases and accelerated warming.

Key Words

atmosphere
earthquake

Steps

Step 1 — Read

Review the background information on Earth's History before starting.

Step 2 — Do

Investigate soil layers: fill a jar with soil and water, shake it, and let it settle overnight. Identify the layers of clay, silt, sand, and organic matter.

Step 3 — Observe

Use your senses (except taste) to describe what you notice.

Step 4 — Record

Write a summary of your findings in 3-5 sentences.

Check Your Understanding

Question 1

1 of 3

What is the greenhouse effect?