Across
- 4. the simplest chemical substances that cannot be changed in a chemical reaction or by any chemical means.
- 6. happens when a gas is transformed into a liquid.
- 11. is the smallest unit of matter
- 13. the process of converting a liquid to a gas
- 14. describe how big or small an object is
- 16. it has a indefinite shape and indefinite volume
- 17. what do you call the mixture of two or more substances
- 18. it is composed of tightly packed particles
- 19. Amount of matter present in an object.
- 20. negatively charged particles
Down
- 1. anything that has mass and takes up space
- 2. The ability of materials to be easily broken down into pieces
- 3. substance made from two or more elements.
- 5. consists of highly charged particles with extremely high kinetic energy.
- 7. positively charged particles
- 8. an electrically neutral subatomic particle of an atom
- 9. what is the matter that has definite shape and size
- 10. combination of atoms
- 12. occurs when heat is applied to a solid.
- 15. amount of space occupied by matter