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

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

This activity uses LEGO® bricks to represent atoms bonding into molecules and crystals. The lesson plan is for a 2.5 hour workshop (or four 45-minute classes).

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