Changes In Matter
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Physical changes alter the shape or form of a substance but do not change its chemical composition. They include changes of state between solid, liquid, and gas phases. Chemical changes form new substances by altering the chemical composition through breaking or forming of chemical bonds. The three common states of matter are solids, which have a definite shape and volume; liquids, which have a definite volume but varying shape; and gases, which have varying shapes and volumes. Substances can change state through melting, freezing, vaporization, condensation, and sublimation due to the addition or removal of heat causing atoms to speed up or slow down.
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Changes In Matter
- 2. Physical ChangeDoes not change material22
- 3. Physical ChangeDoes not change materialChange in State (Solid, Liquid, Gas)Change in shape Change in form23
- 5. States of matterDefinite ShapeDefinite VolumeSolid42
- 6. States of matterShape VariesDefinite VolumeLiquid45
- 8. States of matterShape VariesVolume VariesGas47
- 9. 41
- 10. Changing of StateSolid to liquidMeltingAddition of heat to a solid causes the atoms to start flowing49
- 11. Changing of StateFreezingLiquid to SolidLoss of heat causes the atoms to slow down50
- 12. Changing of StateLiquid to gasVaporizationGain of heat causes the atoms to leave liquidAt surface onlyEvaporation TypeBoiling TypeEntire Liquid at once51
- 13. Changing of StateGas to LiquidCondensationLoss of heat causes the atoms to slow down and collect52
- 14. Changing of StateSolid to GasSublimation53