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In this activity, learners will use Google Sky to observe features of the night sky and share their observations.

This is an activity which will allow learners to gain an understanding of lemur behavior through observation and role play.

In this activity, learners start their own field journal to better understand the wildlife in their area.

In this seismic simulation, learners play a "who-dunnit" game to explore earthquakes.

In this activity, learners explore how to stay fit the fun way. Learners participate in three physical activities.

In this robotics activity, learners find ways to express emotions and feelings using only body movements, not facial expressions.

In this activity, learners use pedigree and jigsaw puzzles to explore how scientists use genetic information from a family to identify a gene associated with a genetic disorder.

In this activity, learners will train to increase bone strength and to improve heart and other muscle endurance by performing jump training with a rope, both while stationary and moving.

This activity is a sensory experience that recreates the sounds of a pond at night.

In this activity, learners map their world by drawing a plan of their bedroom.

In this online interactive, learners use fossils to infer temperatures 55 million years ago, at the sites where the fossils were found.

In this activity, learners will train to improve lung, heart, and other muscle endurance as they walk a progressive, measured distance.

This quiz lets you estimate your annual radiation exposure.

In this activity, learners train to increase muscular strength and improve upper and lower body coordination by performing the “bear crawl” and the "crab walk.” Learners perform the exercises over tim

This activity (page 2) draws upon a familiar, computer-based concept related to visual resolution: pixilation.

In this activity, learners will train to develop upper and lower body strength in their muscles and bones by performing body-weight squats and push-ups.

In this activity, learners sample a star field to estimate the number of stars in the universe.

In this lesson, learners are challenged to discover the relationship among six numbers.

A group of learners has an envelope containing a series of bank checks. A few checks are removed at a time, and the team attempts to construct a plausible scenario which involves those checks.

In this online activity about heart disease, learners will pick one of three patients (based on actual patient histories) and help a cardiologist diagnose and prescribe treatments for him or her.