Jeremiah Harper

2. a form of matter that has a constant composition and properties that are constant throughout the sample
3. anything that has matter and occupies space.
4. the amount of space that a substance or object occupies, or that is enclosed within a container, especially when great.
5. the measure of the amount of matter in an object
6. the mass per unit volume of an object.
8. a particle consisting of two or more atoms covalently bonded together.
10. mixture a mixture that has a uniform appearance throughout also known as a solution, especially of a solid dissolved in a liquid.
12. the force exerted on a body by gravity
13. a pure substance consists of atoms with the same atomic number.
15. the state of matter in which particles are close together but able to move around.
17. the state of matter in which particles are far apart, move rapidly, and have little interaction with each other.
18. the law that states that the masses of chemical substances combine in definite, characteristic integer ratios when forming compounds.

1. The particle model of matter is a theory that explains how the particles that make up a substance are arranged, and how they move and interact with each other.
7. mixture a mixture that does not have a uniform appearance since the combined substances are unevenly distributed.
9. a pure substance consisting of atoms of to or more elements that are chemically combined in a fixed ratio.
11. a physical combination of two or more substances in a changeable ratio.
14. closely packed atoms whose kinetic energies are much lower than those of liquids and gases
16. the basic unit of a chemical element.