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

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

GAINING THERMAL ENERGY Particles move faster temperature rises

Melting Change from solid to liquid Increase in kinetic energy

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

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

LOSING THERMAL ENERGY Particles move slower temperature drops

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

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

Deposition Gas changing directly into a solid Ex: frost

Brain Pop Video hill.com/sites/ /student_view0/brainpop _movies.html#

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

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

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

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

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

Melting Change from a solid to a liquid

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

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

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

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