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Environmental, Earth and Space Science

  • Historical Sunspot Activity: Finding Patterns In this activity, students use historical data from SILSO, the Royal Observatory of Belgium, to plot the monthly average of sunspots over a 30-year period. From the plot, students determine if a cycle exists, and if one does, the length of the cycle. View »
  • Volcano in the Classroom Here’s a safe, easy, and vivid interpretation of a classic activity that won’t break the budget. All you’ll need are a few common items—a beaker, sand, water, a candle, and a hot plate. View »
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