On April 20, 2010, the Deepwater Horizon rig exploded, leading to the biggest offshore oil spill ever in the United States. The explosion was visible for 35 miles! Readers will watch workers… More →
Grade 5
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It's always in action, but what do you know about the digestive system? It breaks down food, taking away the valuable nutrients we need while getting rid of the waste we don't. Explore more… More →
In the aftermath of the September 11 terrorist attack on the Pentagon, true heroes emerged. Follow along as two strangers demonstrate incredible strength and determination to rescue a man… More →
The United States Constitution contains the rules of the nation. It says how the government should run. But how did it come to be? Learn about the creation of our nation's systems with… More →
Winds whipped dark clouds of dust across the dry, open croplands of the Great Plains. How did this tragedy begin and what took the country through the worst of this extreme drought in the… More →
Voting is an important part of our democratic process. But what do you know about the unique way the United States elects presidents and vice presidents? Learn all about the electoral… More →
The Tarheels are down by two against the Bulldogs with minutes left to go. After a series of strategic moves and a slam dunk, North Carolina becomes the 2017 NCAA Men's Basketball Champion… More →
Mary Fales woke suddenly to discover a strange glow lighting the night sky. Dry winds were spreading flames toward her house. She and her husband David needed to move fast to escape the… More →
The Great Depression plunged the United States into years of uncertainty that challenged the whole country. Discover the causes of the depression, how the people of the world were impacted,… More →
The streets were littered with rats scurrying over dead and dying bodies. Fear spread through the city of London just as fast as the plague, killing almost a quarter of the city's population… More →
What do Earth's atmosphere and a glass-covered building have in common? Both can keep things hot! Explore the greenhouse effect with easy-to-understand content tied to the curriculum of… More →