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Ocean acidification is a big issue due to the amount of carbon dioxide humans release. CO2 in the atmosphere is absorbed into the ocean thus changing its acidity.

In this activity, learners conduct an experiment to find out if steel wool will weigh more or less when it is burned. Learners will explore the effects of oxidation and rusting on the steel wool.

This Exploratorium activity can be used in many contexts because geysers are great opportunities for learning about heat and temperature changes as well as geological/space science phenomena.

In this activity, learners explore Boyle's Law and discover that water will boil at room temperature if its pressure is lowered.

In this math activity related to light, learners assemble a photometer and use it to estimate the power output of the Sun.

In this activity, learners simulate Otto von Guericke's famous Magdeburg Hemispheres experiment.