Across
- 1. Made up of two or more things
- 3. Valuable
- 5. Artificial; Not natural
- 7. Gas that comes out of an engine as a waste product
- 10. Cruel; showing no concern for others
- 11. People in charge
Down
- 2. Caught fire or exploded
- 4. Damaged an area while looking for something
- 6. Organization with a focus or a goal
- 8. Scientific study of matter and energy
- 9. Outer edges of a city; far away from the center