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In this activity, learners explore how the area of Arctic sea ice has changed over recent years. First, learners graph the area of Arctic sea ice over time from 1979 to 2007.

In this lesson plan, learners examine some of the of greenhouse gas emissions sources in their community.

In this activity, learners graph 48 hourly air temperatures from a local weather observation site and observe the diurnal temperature variations.

In this weather forecasting activity, learners determine the location of cold and warm fronts on weather plot maps.

Learners tour their school or home looking for sources of indoor air pollutants (IAPs).

In this activity, learners estimate how much water they think can be found in various locations on the Earth in all its states (solid, liquid, and gas) to discover the different water ratios in the Ea