Across
- 3. a thick forest in the tropics
- 4. ruin
- 6. danger
- 9. a large mass of ice that moves slowly down a valley
- 11. the natural world
- 12. death of a species
- 14. a poisonous substance
- 15. an area of land between hills
Down
- 1. burnt from the sun
- 2. a measure of how hot or cold a thing is
- 5. making something dirty with gas or poisonous chemicals
- 7. a small river
- 8. something that fills you with admiration
- 10. not real; produced in your mind
- 13. a type of plant or animal