Matter Vocabulary

7. a change that occurs that does change the identity of a substance; something new is formed
9. has a definite volume but no definite shape
10. when the temperature of a material decreases, its particles move slower and come closer together making it contract
12. the temperature at which a solid becomes a liquid.
13. the ability to burn
15. occurs when particles escape from a non boiling liquid and become a gas
16. the amount of matter in an object
18. the amount of space that an object takes up
19. changes a substance from a gas to a liquid
20. when the temperature of a material increases, its particles move faster and spread out making it expand
21. the concentration of matter in an object

1. determined by a substance ability to react with other substances (the ability to react with air, water/acids, or catch fire)
2. characteristics of a substance that can be observed or measured without changing the substance into something else (Examples: color, texture, size, shape, smell, boiling point, freezing point, melting point)
3. anything that has mass and takes up space
4. has a definite shape and a definite volume
5. the ability of a substance to combine chemically with another substance
6. a change that occurs without the identity of a substance; no new substance are formed
8. a measure of the pull of gravity on an object
11. does not have a definite shape or volume
14. the temperature at which a liquid changes to a gas
17. the principle that properties such as mass, volume and number remain the same despite changes in the forms of objects