What defines you: your ethnic background, the region you live in, your age, or your gender? Correct answer: All of the above. Assemble the pieces of your identity in a cultural chest. 

When people move, they take along more than their personal possessions. They also transport their culture. How have your family and your neighbors influenced the community you live in?

One of the best ways to learn about a culture is to look at the objects its people use. What can you tell from the object alone? And what do you gain by seeing it in use?

When you think of your family's traditions and beliefs, what special objects come to mind? Would the meaning and value of these objects be clear to someone from another family or culture?

In outer space, you might not recognize the Big Dipper. The stars that form this constellation exist in 3-D not 2-D—so the star pattern changes with your viewpoint. Take another look at the Big Dipper.

How long have humans been on Earth compared to the length of time dinosaurs roamed the planet? Gain a new understanding of time by mapping out Earth's history.

Here on Earth, we tend to take gravity for granted. Yet the astronauts aboard the Space Station need to learn how to do everything without it. Can you imagine shooting hoops in a "weightless" world?

Students in grades 3-8 can observe and learn about the carbon cycle in this experiment.

"Atmosphere," "biofuels," "carbon dioxide"—challenge students to spell out their climate change knowledge from A to Z.

Want to see firsthand how a dinosaur moved? Observe a bird as it walks along the sidewalk or in your backyard. Then challenge a friend to a "push-up" race—dinosaur versus crocodile.