Across
- 2. What should we save to help protect Earth?
- 4. What planet do we live on?
- 5. What protects us from the Sun’s harmful rays?
- 6. What is the path Earth takes around the Sun called?
- 7. What is Earth the third planet from?
Down
- 1. What covers about 70% of Earth?
- 3. What causes day and night on Earth?