2Kinetic Theory of Matter Matter is made up of particles which are in continual random motion.
3What are the 4 states of matter? SolidPlasmaLiquidGas
4Solids: Solids have a definite shape and volume usually organized, crystalline solidSofter solids will have no pattern, amorphous solid.packed tightly togetherVibrate in place
5Particles in Liquids: Liquids have a definite volume Liquids take the shape of their container.Liquids are a fluidFar enough apart to slide over one anotherEnergy level is greater than in solids
6Particles in Gases: No definite volume or shape. Gasses spread out to fill the entire space given.Can be squeezed togetherParticles are very far apart and move freelyCollide frequentlyHave LOTS of energy
7Particles in Plasma:Plasma is a lot like a gas, but the particles are electrically charged.Have indefinite shape and volume.EXTREMELY energeticLightning is a plasma.Used in fluorescent light bulbs and Neon lights.
8STATES OF MATTER LIQUID PLASMA SOLID GAS Tightly packed, in a regular patternVibrate, but do not move from place to placeClose together with no regular arrangement.Vibrate, move about, and slide past each otherWell separated with no regular arrangement.Vibrate and move freely at high speedsHas no definite volume or shape and is composed of electrical charged particles
9What is a phase Change?A change from one state of matter to anotherPhase changes are physical changes because they do not affect the chemical make up of a substance.
10What happens during a phase change? During a phase change heat energy is either absorbed or releasedHeat energy is released as molecules slow down and move closer together- exothermicHeat energy is absorbed as molecules speed up and expand-endothermic
11Melting Phase change from a solid to a liquid Molecules speed up, move farther apart, and absorb heat energy
12Freezing Phase Change from a liquid to a solid Molecule slow down, move closer together and release heat energy.
13Vaporization (Boiling) Phase change from a liquid to gas. It occurs at the boiling point of matter.Molecules speed up, move farther apart, and absorb heat energy.
14EvaporationPhase change from a liquid to a gas on the surface of a liquid (type of vaporization).Molecules speed up, move farther apart, and absorb heat energy.
15Condensation Phase change from a gas to a liquid. Molecule slow down, move closer together and release heat energy.
16Sublimation Phase change from a solid to a gas. Molecules speed up, move farther apart, and absorb heat energy.
17Deposition Phase change from a gas to a solid. Molecules slow down, move closer together and release heat energy.
19Phase change of waterWhy is there no change in temperature during a phase change?Define melting and boiling point.What is the melting and boiling point of water?At what temperature does water freeze and become a solid?