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In this chemistry activity, learners use thin layer chromatography to determine the molecular composition of different markers.

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 activity, learners add dilute bleach solution to water that has been dyed with yellow, blue, and green food color.

This activity was designed for blind learners, but all types of learners can explore means of physically separating a mixture using dissolving, filtration, and evaporation.

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

In this activity, learners separate a mixture of pebbles, salt crystals, and wood pieces. They add water and pour the mixture through a strainer.

Learners use filter paper and water to analyze six different markers. They mark the paper with ink, and dip the paper in water. The water travels up the paper and dissolved ink travels with it.