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National Science Education Standards:
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Learning Time:
5 to 10 minutes  
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This classic video explains the history, debate and continuing discussion of the definition of a planet.

Keywords: Dwarf planet
Audience: Middle school, High school, Informal education
Materials Cost: Free

This is an activity about constellations. Learners will make a "star finder" toy and play a game to find a constellation in the night sky.

This 5-minute animation portrays fluctuations in the cryosphere through observations collected from a variety of satellite-based sensors. The cryosphere consists of those parts of the Earth's surface where water is found in solid form, including... (View More)

This is a video to accompany the Stanford Solar Center's Build Your Own Spectroscope activity. It serves as an introduction to several aspects of the Sun, including information about solar activity, effects of solar activity on Earth and other... (View More)

This math example shows how to calculate the distance one can see from different heights using trigonometry. This resource is from PUMAS - Practical Uses of Math and Science - a collection of brief examples created by scientists and engineers... (View More)

Keywords: Trigonometry; Cosine
Audience: High school
Materials Cost: Free per student
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