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In this experiment, learners separate different types of molecules in marker inks (using a technique called "thin layer chromatography").

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 will explore how water affects marker on filter paper. Learners will use science process skills such as making observations and predictions as they explore color.

In this activity on page 5 of the PDF (Plants—The Green Machines), learners use chromatography to separate and identify pigments within various leaves.

In this activity, learners explore materials through paper chromatography.

Learners observe different light sources, outdoors and indoors, using prism glasses (diffraction glasses) and color filters.

In this family or group activity, learners conduct a chromatography experiment to reveal the colors that leaves "hide" under their green pigments.

Learners use chromatography to separate and analyze the mixture of pigments in leaves. Use this activity to discuss photosynthesis as well as why leaves change color in autumn.