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

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 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.