Across
- 3. a pure substance consisting only of atoms that all have the same numbers of protons
- 4. property of matter not involving in its manifestation a chemical change
- 6. usually reversible change in the properties of a substance
- 7. small particles that is the building block of a substance
- 10. material made up of two or more different chemical substances, not chemically combined
- 11. a substance that is made up of two or more atoms bonded together
- 14. when a substance combines with another to form a new substance
Down
- 1. material's properties that becomes evident during, or after, a chemical reaction
- 2. two or more elements combined into one substance
- 5. anything that has mass and takes up space
- 8. material that has a constant composition
- 9. definite volume but no fixed shape
- 12. most abundant form of ordinary matter in the universe
- 13. molecules closely packed together and contain the least amount of kinetic energy
- 15. having no fixed shape and no fixed volume