1. States of Matter & Phase Changes Solid, Liquid, & Gas

2. Temperature The amount of kinetic energy (movement) of the particles. Higher temperature- faster motion Lower temperature- slower motion

3. GAINING THERMAL ENERGY Particles move faster temperature rises

4. Melting Change from solid to liquid Increase in kinetic energy

5. Vaporization Liquid becomes a gas 2 TYPES 1. Evaporation- takes place at surface & below boiling point. 2. Boiling- occurs below the surface and at a certain temperature Gaining thermal energy

6. Sublimation A solid changing DIRECTLY into a gas. Ex: Dry Ice

7. LOSING THERMAL ENERGY Particles move slower temperature drops

8. Freezing liquid to solid Freezing Point- temp when liquid changes to solid Losing thermal energy

9. Condensation gas changes into a liquid Ex- Beads of water that form on a glass Losing thermal energy

10. Deposition Gas changing directly into a solid Ex: frost

11. Brain Pop Video http://glencoe.mcgraw- hill.com/sites/0078778085/student_view0/brainpop _movies.html#

12. Solid, Liquid, or Gas 1.) Which state of matter does this picture represent?

13. Solid, Liquid, or Gas 2.) Which state of matter does this picture represent?

14. Solid, Liquid, or Gas 3.) Which state of matter does this picture represent?

15. Identify the state of matter that matches each statement. 4.) Has a definite shape & volume 5.) Completely fills the container 6.) Has a definite volume but no definite shape because it takes on the shape of the container 7.) Particles have a lot of energy & move very fast; there is space between the particles 8.) Particles have enough energy to slide past each other but are still touching 9.) Particles have very little energy & vibrate in fixed positions

16. Heat + Heat Gaining thermal energy Particles move faster & temperature rises - Heat Losing thermal energy Particles move slower & temperature drops

17. Melting Change from a solid to a liquid

18. Crystalline Solid Crystalline Solid- solids in which the particles are arranged in a repeating pattern. Forms crystals Ex- salt, sugar diamonds, sand, snow

19. Amorphous Solid Amorphous Solid- particles are arranged randomly Does not form crystals Ex- rubber, glass, plastics

20. Viscosity Viscosity- a liquids resistance to flow. High viscosity- flows slow Low viscosity – flows quickly

21. Plasma Plasma- an electrically charged gas that exists at extremely high temperatures Ex- lightning, stars, neon lights, the northern lights,