Questions:
1.Recognise that some subtances can change from one state to another when heated or cooled.
2.Describe the changes that occur during changes of state.
3.Know that a substance has characteristic properties, eg. boiling point and melting point.
4.Explain how the temperature of water changes as it is heated until it reaches its boiling point.
Answers:
1. Chocolates melts when it gains heat.
2. When ice melts, it turns to water.
3. The boiling point of water is 100'C. The melting point is 0'C.
4. Water evaporates at about 95'C.
1.Recognise that some subtances can change from one state to another when heated or cooled.
2.Describe the changes that occur during changes of state.
3.Know that a substance has characteristic properties, eg. boiling point and melting point.
4.Explain how the temperature of water changes as it is heated until it reaches its boiling point.
Answers:
1. Chocolates melts when it gains heat.
2. When ice melts, it turns to water.
3. The boiling point of water is 100'C. The melting point is 0'C.
4. Water evaporates at about 95'C.