Across
- 2. Waves
- 5. Used to listen to things
- 6. In the air
- 10. enter your eyes to see things
- 11. Without it you wouldn't live and your organs need it
- 12. You need them to see
Down
- 1. Every living thing one
- 3. galaxy
- 4. It enters your ear to hear things
- 7. There are plenty in your body and you need them to function
- 8. To see things
- 9. Animals
- 13. a chemical which can be dangerous and can be less dangerous