Matter

5. The average kinetic energy of the particles in matter.
8. A mixture is a mixture that does not blend evenly throughout.
10. Phase of matter that is a gas with a large amount of energy.
12. Properties of matter are characteristics that can be observed without chemical changes.
13. Properties are characteristics that describe how the substance reacts with or changes into other substances.
14. Evaporation is a _____ process.
17. This phase change releases heat energy meaning it is a warming process.
21. A change when heat energy is absorbed.
23. A combination of two or more substances that retain their properties.
24. Substances that contain 2 or more different elements.
25. Occurs when a solid changes into a liquid.
26. A pure substance of identical atoms.
27. Phase of matter that has definite volume but not definite shape.
28. Phase of matter that has neither definite shape nor definite volume.

1. Any substance that has mass and occupies space.
2. The heat that is released or absorbed in order to change phase. (2 words)
3. The Law of ________ of Matter states that energy can not be created or destroyed.
4. Occurs when a liquid changes into a solid.
6. This phase change requires energy to occur, meaning it is a cooling process.
7. A dissolved substance.
9. The process by which a solid changes directly to a gas.
11. Phase of matter that has a definite shape and definite volume.
15. A homogeneous mixture where one substance is dissolved in another.
16. Condensation is a _____ process.
18. What a substance is dissolved into.
19. A mixture is a mixture that has a constant composition throughout.
20. The process of a gas changing directly to a solid.
22. A change when heat energy is released.