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Unit 6D:  Reversible and irreversible changes Unit 6D: Reversible and irreversible changes Reversible and irreversible changes T
Unit 5D: Vocabulary ,[object Object],[object Object],[object Object],[object Object],[object Object],Unit 6D: Reversible and irreversible changes a change that can go forwards or backwards, for example melting and freezing   a change that cannot go back, for example burning   a material that dissolves   a material that doesn’t dissolve   V
Unit 6D: Mixing Materials ,[object Object],[object Object],[object Object],[object Object],[object Object],Unit 6D: Mixing Materials: L.O. 1,2 : N.C.
Unit 6D: Mixing Materials ,[object Object],Unit 6D: Mixing Materials: L.O. 1,2 : N.C. Material Soluble Insoluble Observations Sand Flour Salt Powder paint Plaster of Paris Baking powder
Unit 6D: Separating Insoluble Materials ,[object Object],[object Object],[object Object],[object Object],Unit 6D: Separating Insoluble Materials: L.O. 3: N.C Sand and water Salt and water
Unit 6D: Separating Rock Salt   ,[object Object],[object Object],[object Object],[object Object],Unit 6D: Separating Rock Salt (Extension) Salt dissolves in water Dissolved substances will pass through filter paper Dissolved solids are left behind when water evaporate
Unit 6D: Irreversible changes ,[object Object],[object Object],[object Object],[object Object],Unit 6D: Irreversible changes: L.O. 4, 5: N.C: Cement Vinegar & Bicarbonate of Soda
Unit 6D: Heating Materials ,[object Object],[object Object],[object Object],Unit 6D: Heating materials: L.O. 6: N.C.
Unit 6D: Cooling Materials ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Unit 6D: Cooling Materials: L.O. 7: N.C:
Unit 6D: Burning Materials ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Unit 6D: Burning Materials: L.O. 8: N.C:
Unit 6D: Burning ,[object Object],[object Object],[object Object],[object Object],Unit 6D: Burning: L.O. 9, 10: N.C: A material is burned the change is irreversible
Unit 6D: Summary Unit 6D: Reversible and irreversible changes - summary Reversible & Irreversible Changes Changing materials Mixing Heating Cooling Burning Burning Irreversible New materials formed Gas often given  off Irreversible Involves a reaction New materials formed Cannot be removed Reversible Easily reversed Filtering Evaporating Heating Cooling

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Reversible And Irreversible Changes

  • 1. Unit 6D: Reversible and irreversible changes Unit 6D: Reversible and irreversible changes Reversible and irreversible changes T
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  • 11.
  • 12. Unit 6D: Summary Unit 6D: Reversible and irreversible changes - summary Reversible & Irreversible Changes Changing materials Mixing Heating Cooling Burning Burning Irreversible New materials formed Gas often given off Irreversible Involves a reaction New materials formed Cannot be removed Reversible Easily reversed Filtering Evaporating Heating Cooling