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States of Matter

States of Matter. There are 4 states of matter solids-The movement of particles in solids is very slow. In fact, we can’t see them move…Yet, they do. Solids have a definite shape.

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States of Matter

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  1. States of Matter There are 4 states of matter solids-The movement of particles in solids is very slow. In fact, we can’t see them move…Yet, they do. Solids have a definite shape. 2. Liquids-The movement of particles is faster than those of a solid, but not as fast and spread out as a gas. All Liquids take on the shape of Their container. 3. Gases-the movement of particles is super fast, and the particles are spread out. Gases have no definate shape. 4. Plasma-moving faster than gas. Found in space mostly, except lightning!!!!

  2. Particle Movement in States of Matter Solids Liquids Gases

  3. Phase Changes (when matter changes from one state to another): 1. Evaporation: When liquids change to a gas (except sublimation when solids change straight to a gas). Boiling is a form of evaporation. What happens to temperature during evaporation? What happens to particle movement? 2. Condensation: When gases return to liquid form. This is how clouds and fog are formed. What happens to the temperature during condensation? What happens to particle movement? 3. Melting: When solids return to a liquid. What happens to the temperature during melting? What happens to particle movement? 4. Freezing: When liquids turn into a solid. What happens to the temperature during freezing? What happens to particle movement? 5. Deposition: Gas to a solid (no liquid state). Example: frost.

  4. Sublimation-when a solid changes to a gas without becoming a liquid first. Sublimation is another form of evaporation Most of the time, phase changes occur when the temperature changes in a solid, liquid, or gas. But sometimes, a solid can become a gas without going through the liquid phase. This process is called Sublimation. We can naturally see sublimation when snow and ice changes to gas with converting to liquid.

  5. Condensation and Evaporation. Condensation occurs when gases return to liquids(heat is lost). The opposite, when liquids return to gases is Evaporation(heat is gained). Condensation is the process by which water vapor in the air is changed into liquid water. Condensation is crucial to the water cycle because it is responsible for the formation of clouds. These clouds may produce precipitation, which is the primary route for water to return to the Earth's surface within the water cycle.. Condensation over a mountain Condensation low to ground and in the air. Evaporation on a lake Evaporation (boiling)

  6. Phase Changes (cont.) Melting: Freezing: Solid is reverting to liquid state. Temperature is rising. Heat is gained. Examples: ice melting, snow melting, ice cream melting. Liquid is reverting to solid state. Temperature is dropping. Heat is lost. Examples: water freezing, anything freezing.

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