Unlike humans, some animals can instantly change the color or pattern of their skin. Take a hands-on look at how the masters of disguise known as flounders can don several different looks.
Wouldn't it be cool if you could create a rain cloud? Or call cosmic rays into view? Well, you can do both! All you need is an aquarium, a slide projector, dry ice, and a few other easy-to-get supplies.
With access to products and information from around the world, our range of choices is seemingly endless. But how would life be different if you lived in a different time and an isolated place?
From hot deserts to frozen tundra to underwater caves, archaeological sites can be as diverse as our planet’s environments. See why some evidence from past cultures survives over time and some doesn’t.
Vivid mosaics of stone and glass cubes—some enhanced with precious gold leaf—once gleamed from the floor, walls, and ceiling of the Petra Church. Learn how to make your own colorful masterpiece.
It’s time to excavate the contents of your desk—that is, after you first create a scale drawing of the site. Explore how precise mapping helps archaeologists keep track of their finds.
Did you know that you have more than 30,000 genes? Or that DNA carries all the information a cell needs to make you uniquely you? Take a look at the science of where it ALL begins.
How much do you know about what makes you you? Test your genetics knowledge with this interactive quiz. Then, take a nurturing look at the answers when you're done.
Looking for an easy way to add some star power to your letters and notes? These ready-to-print letterheads are astronomical in every way but their cost!
Your DNA carries your unique imprint. Shouldn't your stationery? Add your name and address—and anything else you want to say—to these colorful letterheads.