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In this experiment using sprigs of Elodea, learners will observe a natural process that removes carbon dioxide (CO2) from Earth's atmosphere.

In this activity, learners investigate carbon sequestration by creating a carbonated beverage out of apple juice and dry ice.

Water on Earth is in lakes, the ocean, rivers, underground, and frozen glaciers.

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