Across
- 4. surroundings in which an animal lives
- 7. an animal that has a backbone
- 8. fish use them to take oxygen from the air
- 9. react, give an answer
Down
- 1. animals that have no bones
- 2. a living thing that grows
- 3. a gas which is necessary for all living things
- 5. food
- 6. body parts we use so that carbon dioxide can pass into the blood and carbon dioxide can be removed
- 10. travel to new places to learn new things