1. Foldable Answers SolidLiquidGas Definite shapeIndefinite shape Definite volume Indefinite volume Low kinetic energyMedium kinetic energy High kinetic energy Solid-liquid= melting Solid-gas= sublimation Liquid-solid= freeze Liquid-gas= evaporation Gas-solid= deposition Gas- liquid= condensation Melting pt= 32F/ 0C Boiling pt= 212F/100C Freezing pt= 32F/0C Ice, crystalsWaterWater vapor, steam

2.  Finish States of Matter WS: will go over answers together  Textbook:  465 1-4,p. 483 1-3  Read chapter 15 and use notes: p. 456 1- 2, p. 465 1-3, p. 470 1-10, 14-16,  Pick up Basic of Science WS  Pick up Review Sheet  States of Matter WS  Test Friday: scientific method, metric conversion, density, states of matter, properties

3. A. Matter Flowchart MATTER Can it be separated by physical means? Homogeneous Mixture (solution) Heterogeneous MixtureCompoundElement MIXTUREPURE SUBSTANCE yesno Can it be decomposed by chemical means? noyes Is the composition uniform? noyes

4. Ch. 9 - Classification of Matter II. Composition of Matter ( p.246-250)  Matter Flowchart  Pure Substances  Mixtures MATTER

5. B. Pure Substances  Element  matter composed of identical atoms  EX: copper

6. B. Pure Substances  Compound  matter composed of 2 or more elements in a fixed ratio  properties differ from those of individual elements  EX: salt (NaCl)

7. C. Mixtures  Variable combination of 2 or more pure substances.  Homogeneous Mixture (Solution)  even distribution of components  very small particles  particles never settle  EX: saline solution

8. C. Mixtures  Heterogeneous Mixture  uneven distribution of components  colloids and suspensions  EX: granite

9. C. Mixtures  Colloid  medium-sized particles  Tyndall effect - particles scatter light (looks cloudy)  particles never settle  EX: milk

10. C. Mixtures  Suspension  large particles  particles scatter light  particles will settle (needs to be shaken)  EX: fresh-squeezed lemonade