Lesson 1Solid and liquid states
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- Lesson 2
Melting: particle model
1 2 1 - Lesson 3
Bunsen burners
1 2 1 - Lesson 4
Melting: melting points and freezing points
1 2 1 - Lesson 5
Particle model of substances in the gas state
1 2 1 - Lesson 6
Boiling and condensing
1 2 1 - Lesson 7
Changes of state: energy and evaporation
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