Across
- 2. The planet which is also known as the morning star
- 4. Reproduce by giving birth to babies.
- 8. These help a fish to breathe.
- 9. The place where an animal lives.
- 10. The liquid produced in the mouth.
Down
- 1. The outer layer of a tooth.
- 3. Coldest planet in the solar system.
- 5. Animals that live both on land and in water.
- 6. The largest planet.
- 7. A form of food made by plants.