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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.

In this activity related to the human circulatory system (on page 10 of the PDF), learners observe the dispersion of a drop of food coloring in water, draw conclusions about the movement of dissolved

In this playful, goopy activity, learners mix two liquids to create a solid (that sometimes acts like a liquid ), using basic household materials such as borax and glue.