Big Idea: All matter is made of small particles and this can explain many of its properties. More info...
Demonstration: This experiment works more easily than that with water and is less expensive.
Demonstration: This shows the volume change as liquid nitrogen changes into a gas.
Class practical: This is a magnificent experiment, which at the outset may not appear very exciting.
Class practical: Here students have the satisfaction of growing their own crystals. This is a wonderful experience.
Class practical: An opportunity to look more extensively at the nature of crystals. Students are often fascinated by crystals...
Class practical: looking for crystalline structures in each specimen.
Class practical: This is a fascinating experiment. The sight of the edges of the crystal moving across the slide will never be...
Class practical: As the crystal grows, its characteristic shape is seen.
Class practical: This apparently trivial experiment can lead young students into interesting discussions.
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