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In this activity, explore chromatography and the various colors that make up the ink in markers. Use this activity to investigate cohesion and adhesion.

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

In this activity, learners explore acid and bases as they create their own invisible ink out of baking soda and grape juice.

In this activity, learners use mirrors to write secret messages to a friend. Use this activity to explore letters, optics, and/or symmetry.

In this activity, learners become detectives and use chemistry to investigate fingerprints.

In this activity, learners write a secret message in "invisible ink" and then use chemistry to view the writing.

In this optics activity, learners build a spy tool to secretly view things over walls or around corners.