69
Lesson 69 of 84 · Earth Systems
ExperimentTides and the Moon (Part 2)
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
- natural resource
- conservation
- tectonic plates
Materials Needed
- water
- plastic tray
- magnifying glass
- newspaper
- spray bottle
Safety First
- Work in a well-ventilated area when using vinegar or other strong-smelling substances.
- Dispose of materials properly after the experiment.
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 3What is erosion?