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In this activity, learners discover how to determine the distance to a lightning strike or nearby thunderstorm.

free Ages 6 - 14 5 to 10 minutes
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In this simulation, learners model two elephant seal populations and how they change over time. Learners start with cards representing a variety of seals.

free Ages 11 - 18 45 to 60 minutes
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In this activity, learners investigate the food, water, and space needs of common livestock animals.

free Ages 8 - 18 45 to 60 minutes