Matter

3. how compact something is
8. gas,solid,liquid,plasma
9. positively charged particles
12. A change that occurs when one or more substances change into entirely new substances with different properties.
14. when a liquid becomes a gas
15. a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.

1. The amount of space occupied in an object
2. used to hold liquids and solid samples
4. a change that only affect the physical appearance of something
5. a change from one state (solid or liquid or gas) to another without a change in chemical composition
6. the basic unit of an element
7. An atom's central core, containing protons and neutrons.
10. a subatomic particle of about the same mass as a proton but without an electric charge, present in all atomic nuclei except those of ordinary hydrogen.
11. negatively charged particles
13. measures the volume of liquids