Pre-K to Grade 2
How many hooves of a trotting horse leave the ground at the same time? What about a walking horse or a galloping horse? Find out by making these photographic flipbooks.
Throughout time, people have dressed horses in different ways—sometimes for practical reasons, other times to reflect status or wealth. Explore the styles of horse dress from six world cultures.
From leaf margin and arrangement to the parts of a flower and a corn seedling, take an illustrated look at plant morphology with this collection of guides.
Today, species are becoming extinct—disappearing from our planet—at a faster rate than ever before. What's behind this increase, and what can be done to slow or stop it?
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.
To see what the Big Dipper would look like from outer space, build a mobile!
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.
There are thousands of stars in the night sky. Hidden among them are constellations and planets. How many can you find? Record your sightings in a stellar sky journal.
Have you ever wondered what gives chocolate its flavor? Or where olive oil comes from? You might be surprised to learn just how far some of the items in your shopping bag have traveled.
There are 10 divisions in the plant kingdom. The largest order, flowering plants, has 235,000 species. The smallest, gingkoes, has a single species. Learn more about the orders in the kingdom Plantae.