Class practical: This impressive demonstration shows how easily the crystal comes apart if the blade is accurately aimed...

Practical Activity 14-16

Demonstration: This model shows crystal growing by the addition of more polystyrene spheres.

Practical Activity 14-16

Demonstration: This model shows atoms making up a crystal held together by spring-like forces.

Practical Activity 14-16

Class practical: Students pile marbles into a cardboard tray and so find a convenient way of packing them together.

Practical Activity 14-16

Class practical: This shows ready-made models, giving an opportunity to link the shapes of real crystals with an underlying...

Practical Activity 14-16