Across
- 2. the movement of water around the Earth
- 5. animals that have hair/fur and feed milk to their young
- 6. the cold, northernmost region of Earth
- 8. a group of living things that are alike
- 9. a large piece of ice that breaks off and floats
Down
- 1. changed in a way that helps survive in an environment
- 2. the usual weather conditions of a place
- 3. a thick layer of fat that keeps animals warm
- 4. a huge, slow-moving mass of ice on land
- 7. frozen ocean water that floats