Across
- 2. to change from a gas to a liquid
- 5. completely surrounded
- 7. to decay
- 9. the basic building blocks of living things
- 13. an attraction between atoms
- 14. a small part of something that has been broken off
- 16. the limits of an area
- 17. finding something new or unexpected
Down
- 1. to turn into a solution
- 3. to eat fast and hungrily
- 4. the basic unit of an element
- 6. the science of matter
- 8. to make something visible by uncovering it
- 10. fixed deeply into the surrounding mass
- 11. a good channel for something, such as electricity
- 12. bleak and lifeless
- 15. to turn from a liquid to a solid