1. Matter: Properties and Change

2. Matter Anything that takes up space and has mass

3. Law of Conservation of Matter Matter can not be created or destroyed These legos weigh the same when they are together and taken apart

4. qualitative Information collected and communicated in words Observable by using your senses Example: color, shape, odor

5. quantitative Exact information about the quality you observe using numbers rather than words. Example: length, weight, volume, temperature

7. weight Measure of the pull of gravity on an object

8. States of Matter Solid-definite volume; doesn’t change Liquid-a definite volume but no shape Gas- no definite volume or shape Plasma

10. Boiling Point – The temperature at which liquid matter experiences the same pressure as the atmospheric pressure; turns to a gas Freezing Point – The temperature at which liquid matter turns to solid.

11. Melting Point – The temperature at which solid matter turns to liquid.

12. Physical Properties of Matter Observable characteristics that can change without changing their chemical composition Example: color, form or shape

13. Physical Change Changes in shape, size or physical state (phase) of matter Example: Shredding paper, cutting up fruit, freezing water, boiling water

14. Chemical Properties of Matter Properties of a substance that when changed, result in a new substance Example: ability to conduct heat; reactivity with other substances (rust) These properties create chemical changes in a substance

15. Chemical Change A change in matter that produces new substances Examples: Ability to burn Wood to ash Ability to rust/ react with oxygen Metal to rust Ability to form a new substance with chemical composition different than the original substance. Digestion of food