Across
- 2. essential and fundamental
- 4. existing inside something or someone
- 5. something you can choose to have or do instead of something else
- 8. to think something up or to invent something
- 9. attended by or causing suffering great damage loss or destruction
- 10. to contaminate or make dirty or impure
- 11. something that is equal in force amount area or value
- 12. very complicated
- 13. to produce something
Down
- 1. a dwelling place the act of making a place one's home
- 3. dangerous or risky
- 5. to make something louder or stronger
- 6. an action in response to something the result of mixing chemicals or changing the nucleus of an atom
- 7. all the living and nonliving things surrounding a plant or animal in the place where it loves or grows
- 11. able to work well and not waste time or energy