Across
- 3. a change to a physical part of something
- 6. a usually irreversible chemical reaction
- 9. the law that states that matter is never made, nor destroyed, it just changes
- 10. a material made up of two seperate elements that are not chemically bonded
- 11. a group of atoms bonded together
Down
- 1. properties that can be seen only through a chemical change
- 2. a pure substance consisting of only atoms that have the same amount of protons
- 3. properties that can be seen without changing a chemical
- 4. the ability of matter to combine chemically with other substances
- 5. the smallest unit of matter
- 7. the ability for matter to burn
- 8. a combination of two or more seperate elements