The particle model of matter
Solids, liquids & gases
3 best study notes in Solids, liquids & gases
Changes of state
3 best study notes in Changes of state


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Science - energy transfer
Energy transfer


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Chemistry - History of the Atom
A brief timeline on the history of the atom.


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Chemistry - Heating and Cooling
Produce a great and informational explanation of particles heating and cooling and difference in conduction, convection and radiation.