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Listed under:  Science  >  Matter  >  Mixtures
Interactive resource

Making water drinkable: mixtures

Look at the differences between elements, compounds and mixtures. Notice that water is a compound that dissolves many substances. See how rainwater is treated to remove unwanted substances. Notice that purifying water involves separating mixtures. Explore how solutions form and how solubility is affected by temperature. ...

Interactive resource

Types of matter: pure substances and mixtures

Select samples from an outdoor setting. Magnify the substances to atomic level so that the particles they consist of can be seen. Sort the substances into groups based on how many types of particles they contain. Classify the substances as pure substances or mixtures. For example, classify water as a pure substance and ...

Interactive resource

Grumpy in the desert

Help a friend who has crashed his car in the desert and jumbled up food and equipment. Recover ingredients needed to make tea from the mixed-up supplies. Separate mixtures by using scientific techniques such as distillation, filtration, centrifuging and magnetism.

Interactive resource

Types of matter: compounds and mixtures

Select samples from an outdoor setting. Magnify the substances to atomic level so that the particles they consist of can be seen. Sort the substances into groups based on how many types of molecules they contain. Classify the substances as pure compounds or mixtures. For example, classify water as a pure compound and coffee ...