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This activity introduces the idea that computer scientists measure information by how "surprising" a message is.

In this online interactive simulation, learners will add different salts to water and then watch the salts dissolve and achieve a dynamic equilibrium with solid precipitate.

This magic trick is based on how computers detect and correct data errors.

In this online interactive simulation, learners will test the pH of liquids like coffee, spit, and soap to determine whether each is acidic, basic, or neutral.