Tides and the Moon

What You'll Learn

The water cycle describes how water moves through Earth's systems. Water evaporates from oceans, condenses into clouds, falls as precipitation, and flows back to the ocean.

Key Words

weather
barometer
tectonic plates

Materials Needed

clay
water
plastic tray

Safety First

Protect your work surface with newspaper or plastic.
Adult supervision recommended.

Steps

Step 1 — Read

Read and learn: The water cycle describes how water moves through Earth's systems. Water evaporates from oceans, condenses into clouds, falls as precipitation, and flows back to the ocean.

Step 2 — Do

Follow the procedure carefully, step by step.

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 3

What is erosion?