Across
- 3. Over 70% of the human body consists of this
- 5. A bird that can fly backwards
- 8. Only animal that cannot jump
- 9. A bone stronger than concrete
- 10. Won the most Olympic medals
Down
- 1. A food that does not spoil
- 2. This plant is found everywhere except Antarctica
- 4. Northern lights
- 6. No word rhymes with this
- 7. An organ that is the same size as your fist