Low-cost, teacher-tested activities for the classroom and the curious.
Science of Cooking • Explore the science behind food and cooking with recipes, activities, and Webcasts.
For accuracy, it's best to use both a candy thermometer and the cold water test when making candy.
Explore the unknown world inside your brain with these fun activities.
Are some angles more common than others?
Summertime in the Arctic is for the birds
Can you recognize an ordinary penny? It may be tougher than you think!
Learn about the rovers that have been exploring Mars since 2004, and view the amazing images they've taken.
Most paper airplanes are flat, but these paper hoops can really fly!
Watch tiny blue, green, and white molds grow on leftover food.
How has imagery changed the way we look at our bodies—over time and in different cultures?
Examine words from different languages and determine which two languages are the most closely related.
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