Matter

3. An atom's central core, containing protons and neutrons.
7. a lipped cylindrical glass container for laboratory use.
10. positively charged particle
12. states of matter
13. A change that occurs when one or more substances change into entirely new substances with different properties.
14. negatively charged particle
15. the degree of compactness of a substance.

1. used to measure the volume of a liquid
2. a change from one state (solid or liquid or gas) to another without a change in chemical composition
4. A small particle in the nucleus of the atom, with no electrical charge
5. solid, liquid, gas, plasma
6. a change of matter from one form to another without a change in chemical properties
8. Amount of space occupied by an object
9. Basic unit of matter
11. A group of atoms bonded together