Earth's Atmosphere

What You'll Learn

The atmosphere has several layers. The troposphere (closest to Earth) contains our weather. The stratosphere contains the ozone layer that protects us from harmful ultraviolet radiation.

Key Words

watershed
erosion

Steps

Step 1 — Read

Read and learn: The atmosphere has several layers. The troposphere (closest to Earth) contains our weather. The stratosphere contains the ozone layer that protects us from harmful ultraviolet radiation.

Step 2 — Do

Follow the procedure carefully, step by step.

Step 3 — Observe

Look for patterns in your observations.

Step 4 — Record

Make a graph or chart showing your results.

Check Your Understanding

Question 1

1 of 3

What is the atmosphere?