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In this activity, learners play NOAA's Carbon Tracker game and discover ways to keep track of carbon dioxide and other greenhouse gases in the world.

In this activity, learners add objects and substances to carbonated water to discover that added objects increase the rate at which dissolved gas comes out of solution.

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 imagine what the world might look like if we could build an elevator to space!

In this activity, learners construct and launch rockets using simple materials and their understanding of chemical reactions.

In this activity/demo about piezoelectricity, learners discover how some crystals produce electricity when squeezed.