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States of matter


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Simple slides to describe states of matter at a very elementary level.

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States of matter

  1. 1. States of matter Particles of gases are very far apart and move freely. Gases have an indefinite shape and an indefinite volume. GASES Particles are not very close together. Liquids have an indefinite shape and a definite volume. LIQUIDS All particles are very close together. They have a definite shape and a definite volume. SOLIDS
  2. 2. Look at the pictures. Say whether the part is a solid, a liquid or a gas. Solid? Liquid? Gas? E.g. Hot air is a gass The sky is a …
  3. 3. Solid? Liquid? Gas?
  4. 4. Solid? Liquid? Gas?
  5. 5. Changes in matter Heat goes into the solid as it sublimates. Solid to gas SUBLIMATION Heat leaves the gas as it condenses. Gas to liquid CONDENSATION Heat goes into the liquid as it vaporizes. Liquid to gas VAPORIZATION (Boiling and evaporation) Heat leaves the liquid as it freezes. Liquid to solid FREEZING Heat goes into the solid as it melts. Solid to liquid MELTING HEAT MOVEMENT DURING PHASE CHANGE DESCRIPTION PHASE CHANGE
  6. 6. Reversible or irreversible change? Does it solidify? Does it freeze? Does it melt? Does it vaporizes?
  7. 7. <ul><li> </li></ul><ul><li> </li></ul><ul><li> </li></ul><ul><li> </li></ul><ul><li> </li></ul><ul><li> </li></ul><ul><li> </li></ul> References