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

In this hands-on activity (on page 2 of the PDF), learners experiment with lemon juice and paper to create a message that can only be revealed using chemistry.

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

In this physics demonstration, learners will be surprised when a lemon slice appears to magically levitate within a pint glass.