Across
- 2. the smallest particle of a chemical element
- 3. allowing liquids or gases to pass through it
- 6. not able to be undone or altered
- 9. make something different
- 10. able to be dissolved
- 12. In a chemical reaction, matter is neither created nor destroyed
- 15. an attribute, quality, or characteristic of something
- 16. a group of atoms bonded together
- 17. not able to be changed or adapted
Down
- 1. a distinct compound or substance
- 3. a minute portion of matter
- 4. turning from liquid into vapour
- 5. become incorporated into a liquid
- 7. tangible or concrete
- 8. a substance that has space and volume
- 11. a large body of matter with no definite shape.
- 13. incapable of being dissolved
- 14. capable of being reversed