Across
- 2. a pure substance that is formed when two or more different elements combine; can usually be separated into component elements by chemical reactions
- 3. a subatomic particle with no electric charge, located within the nucleus of the atom
- 6. matter phase change from solid directly to gas
- 7. the smallest unit of an element that has the properties of that element
- 8. a subatomic particle with a negative charge
- 11. the temperature at which a liquid changes into a gas
- 13. the temperature at which a solid turns into a liquid
- 14. the temperature at which a liquid turns to a solid
- 16. material that has mass & takes up some amount of space
- 17. matter with a fixed volume & shape
Down
- 1. the process by which a gas changes into a liquid
- 4. the process in which matter changes from a liquid to a gas
- 5. a pure substance that cannot be broken down into simpler substances by chemical reactions
- 9. a state of matter with a defined volume, but no defined shape
- 10. Two or more atoms joined together
- 12. a subatomic particle with a positive charge that is located in the nucleus of an atom
- 15. a state of matter without any defined volume or shape