1. Matter

2. Vocabulary Matter – something that has mass and volume
Weight – the pull of gravity on matter
Mass - - the amount of atoms
Atoms – a small component of an element

3. Vocabulary Volume – the amount of space an object takes
Gram – a unit for measuring weight. It is about the same as a paper clip
Kilogram – a unit for measuring weight. It is about the same as your math book grams equals 1 kilogram.

6. Vocabulary
Solid – matter that is a uniform substance that has a definite volume and holds its own shape
Liquid – matter that has a definite volume but not definite shape, it takes the shape of its container
Gas - matter that has no definite volume or shape

7. Vocabulary Losing Energy (heat)
Freezing – changing from a liquid to a solid
Condensation – changing from a gas to a liquid
Gaining Energy (heat)
Melting – changing from a solid to a liquid
Evaporation – changing from a liquid to a gas

10. Vocabulary
Physical Change – a change in form (shape, size, phase) but not identity
Chemical Change – Changes into a new substance
Signs of chemical change:
unexpected change in : color
energy – heat or light
bubbles

11. Vocabulary Reactants – two or more substances that are put together
Reaction – a change because of an event

12. Physical Change
Chemical change
No new substance
Change in size or shape
Change in phase (solid, liquid, gas)
You can reverse it
Unexpected color
Heat or light
Bubbles
You can not reverse it

13. Physical or Chemical Change?
Decaying apple

14. Physical or Chemical Change?
Rusty Car

15. Physical or Chemical Change?
Making Bread

16. Physical or Chemical Change?
Ice Sculpture

17. Physical or Chemical Change?
Ice Melting

18. Physical or Chemical Change?
Broken Glass

19. Physical or Chemical Change?
Burning Building

20. Physical or Chemical Change?
Dissolving Sugar in Water

21. Physical or Chemical Change?
Mentos and Diet Coke

22. Vocabulary
Dissolve - mix into
Solution – a mixture

23. Vocabulary
Acid - compound usually having a sour taste and containing hydrogen with an extra proton
Base – a substance that takes up protons
Acid in cabbage juice Base in cabbage juice