Ankylosaurus, Barosaurus, Coelophysis—add to your dinosaur vocabulary with these 12 illustrations. Soon you'll be able to spot a Pachycephalosaurus from across the room.
The history of life on Earth is recorded in the planet's rock layers. Try your hand at reconstructing geologic history with this fossil-filled puzzle.
Now you can gaze at your favorite museum diorama anytime you want, night or day. Grab your crayons, and create a shoe-box replica of A Wading Bird Rookery, The Olympic Rain Forest, or A Giant Cactus Forest.
Discover how artists bring dinosaur skeletons to life with skin, feathers, and other features. Then try to create your own lifelike Velociraptor from a skeletal drawing.
Only the top 200 meters (656 feet) of the ocean get enough light to support plants. Below 1,000 meters (3,281 feet), there's complete darkness. So how do organisms on the sea floor find food?
Did you know that the island of Iceland is really just the peak of an underwater mountain? What other land forms lie hidden beneath the ocean, and how are they formed?
If you've spent even a few hours in a pool, you know that the deep end is colder than the shallow. But do you know why? Experiment with colored ice cubes for insight into water density.
Feathers serve many purposes, only one of which is flight. Examine their contours along with down feathers, semiplumes, and bristles.
This simple experiment eases the task of understanding daily and seasonal cycles of day and night. See firsthand why the length of daylight changes along with your location on Earth.
Not all dinosaurs were huge creatures that shook the Earth when they walked. Put two dinosaurs in perspective with this drawing activity.