What is a solid?
Explore what solids are.
Crystals
Learn about crystals
Grains and powders
Learn about grains and powders.
What is a liquid?
Explore what liquids are.
Runny liquids
Explore runny liquids.
Hot liquids rise, cold liquids sink
Explore why hot and cold liquids do this.
Swelling and shrinking
Explore why things swell and shrink.
Mixtures
Explore mixtures.
Soluble and insoluble
Explore what is soluble and what is insoluble.
Separating mixtures
Discover how mixtures separate.
Answers
Teacher's Guide.