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In this chemistry demonstration, learners observe a chemical reaction that produces a colorful effect.

In this chemistry activity, learners observe a combustion reaction and deduce the components necessary for the reaction to occur.

In this chemistry challenge, learners systematically investigate which combination of four solutions produces a deep red color.

This hands-on activity demonstrates how a material can act differently when it's nanometer-sized.

In this introductory activity and demonstration, learners are introduced to the concept that different substances react chemically in characteristic ways.