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In this activity, learners discover the primary physical properties used to separate pure substances from mixtures.

In this activity, learners investigate diffusion by creating underwater "fireworks" using food coloring, oil and water.

This activity was designed for blind learners, but all types of learners can use it to investigate heterogeneous and homogeneous mixtures and solutions, identify the differences, and explore the conce

In this chemistry investigation, learners combine common cooking substances (flour, baking powder, sugar, salt, pepper, oil, water, food coloring) to explore mixtures.

In this activity, learners mix water, cooking oil, and liquid food coloring to create beautiful colored designs in a cup. Use this activity to explore liquid density and solubility.

In this a hands-on activity, learners explore how to put ice cream in an oven without it melting. Ideas in this activity include insulation and cooking.

In this chemistry activity, learners prepare two petri dishes, one filled with water and one filled with milk.