In the Know

What Is an Ice Age?

Did you know that we are in an ice age right now? It’s true! An ice age is a long period of time when Earth’s temperatures are colder and ice covers much of the land. … Read more

In the News

What Is a “Gravity Hole”?

How would you describe Earth’s shape? Most would say it is round or shaped like a ball. But experts describe its shape as a “lumpy potato.” It is flatter at the poles and wider in … Read more

In the Know

The Aurora Borealis

The night sky is black. Then, beautiful colors appear. They are green. They are red. They are purple. They do not look like anything you’ve seen on Earth before. It is the aurora borealis [uh·raw·ruh baw·ree·a·luhs]. … Read more

In the News

Why Are West Coast Hurricanes Unusual?

In August, Tropical Storm Hilary hit California. It caused mudslides and flooding. Hilary was the first tropical storm to hit this part of the United States since 1997. Tropical storms and hurricanes are common on … Read more

In the Know

Visiting the Equator in Uganda 

Uganda is a country in East Africa. It has a population of over 45 million people. People from many different cultures live there. Thirty-two different languages are spoken there. Uganda contains part of Lake Victoria. … Read more