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In this activity, learners create a mixture of water, alcohol and permanent marker ink, and then add salt to form a colored alcohol layer on top of a colorless water layer.

Learners make a refrigerator that works without electricity. The pot-in-pot refrigerator works by evaporation: a layer of sand is placed between two terra cotta pots and thoroughly soaked with water.

This is a series of demonstrations about different electrical and magnetic phenomena.

In this experiment, learners will conduct chemical and physical tests to identify mystery substances.

In this engineering design activity, learners will design, test, and build a “haunting machine” to solve a Sherlockian mystery.

In this math-based activity, learners will experiment to find how height and angle affect spatter and then use this knowledge to solve a crime.