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In this outdoor activity, learners find the swollen bumps known as "galls" on various plants and get a closeup look at the parasitic animals living inside.

Learners explore the relationship between energy consumption, population, and carbon emissions in the countries of the Americas.

Why is ocean water sometimes the warmest when the average daily air temperature starts to drop? In this activity, learners explore the differing heat capacities of water and air using real data.

April showers bring May flowers, but what do coastal storms bring?