This is a practical activity to help students distinguish between physical and chemical changes. They perform 2 experiments and witness 3 others, and then decide if they're physical or chemical changes. The file includes an activity sheet and teacher instructions for each change.

A moles worksheet that includes questions ranging from simple mole-mass conversions to empirical and molecular formula. Also suitable for parts of IB chemistry topic 1.

Students test the physical properties of several commonplace substances and deduce whether the structures are metallic, ionic, simple molecular or giant covalent. The first is a set of instructions. The second is the students' data sheet. There are a couple of circuit diagrams missing, and also words on the flow chart, which I added by hand.