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Physical sciences  
Astronomy  
Learning Time:
30 to 45 minutes  
SMD Forum - Primary:
Earth Science  
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This model demonstrates convection currents and uses water, food coloring, a cup of very hot water and a votive candle as heat sources. Movie clips of demonstration setup and convection in action are provided. This activity is supported by a... (View More)

Using this worksheet, students learn to differentiate between wind speeds by using the Beaufort Scale of Wind Force. They are presented with a table describing the Beaufort scale, and then assign the appropriate scale to different weather events... (View More)

Keywords: Wind vectors
Audience: Elementary school
Materials Cost: Free

This 34-minute video is the result of a collaboration between the National Park Service and NASA. It tells the story of the Underground Railroad, the South/North escape routes used by freedom-seeking slaves during the 19th century. Slaves traveling... (View More)

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