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In this activity, learners build a simple solar oven out of household materials to melt chocolate and marshmallow between graham crackers--known as s'mores.

In this activity, learners construct their own spectroscope as they explore and observe spectra from familiar light sources.

Learners observe two model atmospheres -- one with normal atmospheric composition and another with an elevated concentration of carbon dioxide.

In this outdoor activity/game, learners use thermometers to simulate how lizards survive in habitats with extreme temperatures.