Scientists study insects by observing them in nature and collecting them for further research. Learn their techniques so you can make your own discoveries with this article and online investigation.
Introduce younger students to space objects and how gravity affects them. Then have them explore the effects of this force with the Gravity Game.
Could a space rock destroy life on Earth? Learn more about asteroids, comets, and other space objects and what happens when they collide—with each other and with our planet.
Did you know miners must dig up and process as many as 30 tons of rock to make a single gold ring? Take a dazzling look at how gold is mined and transformed.
Test your classification skills with this leafy challenge. Examine drawings of 12 oak leaves, and see if you can determine the common and scientific name for each one of the dozen.
Can you name the mystery arthropod named for its hundred-some legs? More important, do you know what physical and behavioral characteristics it shares with a shrimp or honeybee?
The world's climate is changing. Scientists say the effects of these changes could be devastating to living things on Earth—including humans. See what scientists are doing now, and learn ways to help.
"Greenhouse effect" and "global warming" are becoming household phrases but how, exactly, are they linked? Explore the interconnections and consequences of climate change.
What can you tell from looking at a fossil record of dinosaur footprints? Everything from which dinosaur was there first to what they might have feasted on.
Try to imagine a world without horses. For starters, what would Paul Revere have used to make his midnight ride on, a cow?