1. Properties of Matter Tammy P. Markland

2. condense to change states from a gas to a liquid, mainly due to the temperature getting cooler

3. erosion the gradual wearing away of rock or soil by water, wind, or ice

4. evaporate to change states from a liquid to a gas, mainly due to the temperature getting warmer

5. freeze to change states from a liquid to a solid, mainly due to the temperature getting colder

6. gas matter that can freely change shape and size; often it can’t be seen

7. lava melted, liquid rock that reaches Earth’s surface

8. liquid matter that keeps it’s size but takes the shape of its container

9. magma melted, liquid rock beneath Earth’s surface Magma is in the outer core

10. matter anything that takes up space and has weight

11. melt to change states from a solid to a liquid, mainly due to the temperature getting warmer

12. mixture a combination of substances in which a chemical reaction does not occur

13. physical change a change in the size, shape, or color of a substance that does not change it into a different substance

14. pressure physical force placed on an object

15. property a feature or quality that can be used to describe something

16. sand tiny, loose grains worn away from rocks, shells, and other materials

17. shape how something looks around the outside

18. size how big or small something is

19. solid matter that keeps its shape and size

20. solution a mixture in which one substance is spread evenly through another substance, such as a solid dissolving in a liquid and becoming invisible

21. state of matter the solid, liquid, or gaseous condition of a substance

22. substance a particular kind of material

23. surface the outside or uppermost part of a thing

24. temperature the measure of how hot or cold something is

25. water vapor the state of water in which it is an invisible gas

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