The lesson can also be used to lay a foundation for learning about changes in state and chemical changes which can be further ... The activity sheet will serve as the Evaluate component of the 5-E ...

There are three required practicals in the Chemical Changes section: Required practical 1 - preparation of a pure, dry sample of a soluble salt from an insoluble oxide or carbonate. Required ...

There are three core practical activities in the Chemical changes section: investigate the change in pH when adding powdered calcium hydroxide or calcium oxide to a fixed volume of dilute ...