Did you know Jupiter's Great Red Spot is really a 300-year-old hurricane that's twice as wide as Earth? Find out more awesome facts. Then celebrate your cosmic smarts with a solar system of cookies.
It's the differences in this world that make all the difference! Find out why biodiversity is so important to our planet—and what you can do to help protect it.
Take a tour of evolution. Discover a dinosaur nesting ground in Patagonia. Travel in the Magic School Bus to Dinosaur Land. And dig up lots of dinosaur facts with these 12 kid-friendly books.
What would it be like to organize a dinosaur exhibit? Find out by creating your own miniature Mesozoic Museum. Don't forget to invite your friends and family to the opening!
To see what the Big Dipper would look like from outer space, build a mobile!
Find out what we know about Mars in this online tour of Earth's closest neighbor.
Try this on for size: If Earth were the size of your head, then Mercury would be an orange and Jupiter a small car. Size up the planets for yourself with a model scavenger hunt.
Can you convince your friends to spend the next school break on Pluto? Let your imagination run wild, and write an inspiring work of science fiction.
Do you know what makes you different from a snail, a tree, or even your best friend? Find out with this hands-on look at genetic code—and build a model that's a million-plus-times larger than life.
Here's a very cool experiment that just might bring a tear to your eye. Use a blender to separate the DNA from an onion. Then hold the genetic material in your hand.
Nature + Nurture = You! While it may look like a simple equation, the combination of your genes and your environment is actually very complicated. Find out if your answers match your family's.
How can you wear a chimp on your wrist—without getting primate elbow? The answer to this riddle is not as tough as it may seem. Need a hint? Take a closer look at genetic code.
The tibia's connected to the femur; the head's connected to the prothorax ... Learn the parts that make up an insect with this illustrated guide to a grasshopper.
If you want to know if you're holding a female, flip it over and look for the lung slit and epigynum. Get a close-up view of what both these parts look like.
Not all arthropods are equal in the eyes of plants. To attract helpful ones and fend off harmful ones, plants use their important chemical and mechanical attributes.