1. Topic: Matter Do Now: Lesson 1 in the book

2. Matter mass space Anything that has mass and occupies space –Massgrams kilograms –Mass is measured in grams or kilograms volume literscm 3 –Space or volume is measured in liters or cm 3

3. Phases

4. Solid: Solid: definite volume definite shape

5. Liquid definite volume indefinite shape takes the shape of container

6. Gas indefinite volume indefinite shape takes the shape and volume of container

7. Properties – used to characterize matter Physical –how they look Chemical – how they react with others

8. Physical Properties Describe the appearance and form of matter Words: color, texture, luster, odor, solid, liquid, gasMeasurements: a number and a unit

9. Chemical Properties Describe how matter behaves in presence of other matter Describe how matter changes into another kind of matter –Flammable –Corrosive –Ability to neutralize acids or bases

10. Physical or Chemical? Reddish brown Forms new substances with HNO 3 MP = 1085  C Density = 8.92 g/cm 3 Reacts to form green copper carbonate Shiny Malleable BP = 2570  C - physical - chemical

11. Matter goes through changes

12. Changes Physical – identity remains the same Chemical – identity of matter changes

13. Physical Change identityThe form or appearance of sample may change but identity remains same –Cutting, crushing, grinding,tearing –Phase changes –Dissolving

14. Dissolving is physical change Think of sugar in water still have sugar – you just spread it out with water molecules in between C 6 H 12 O 6 (s)  C 6 H 12 O 6 (aq) Aq = dissolved in water

15. Phase changes are physical changes No new substance is created (chemical formula stays the same) Ex: ice melting: H 2 O(s)  H 2 O(l) water boiling: H 2 O (l)  H 2 O(g)

16. Chemical Change chemical change - identity of matter is changed new substance with unique properties is formed Example - burning The chemical formula changes Ex: 2H 2 O(l)  2H 2 (g) + O 2 (g)

17. Evidence of Chemical a Chemical Change Bubbles (formation of a gas) Color change Heat Light Formation of a precipitate (new substance)