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In this activity (on pages 18-29) learners explore the impact of the March 24, 1989 oil spill in Alaska caused by the Exxon Valdez tanker.

In this activity (on pages 18-28), learners explore how the shape of seeds affects how they are dispersed by wind, birds, ocean currents and other means.

This activity (on pages 38-43) has learners simulate the way scientists track and map the movement of otters in the wild using radio trackers.

In this game (on pages 14-21), learners explore how each human being inherits genetic traits such as eye color.

This activity (on pages 13-18) has learners build a model tree and then figure out how to make their tree stand up by itself.