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With a coffee filter, a black marker, and a cup of water, discover the secret colors hidden in black ink.

In this activity, learners separate the components of Gatorade using a home-made affinity column.

In this activity, learners explore materials through paper chromatography.

In this activity, learners perform an experiment that models a chromatography-like process called electrophoresis, a process used to analyze DNA.

Learners analyze mixtures of dyes using filter paper chromatography. They place spots of the different dyes at the bottom of a piece of filter paper, and hang the paper to touch the surface of water.