Grade 4

Big Brown Bats hunt at night, using sound to find their prey in the dark! Learn all about these amazing mammals and the unusual ways they survive. More →

Skunks are stinky, but did you know that smell helps them defend against danger? Or that they help get rid of insect pests? Discover lots of interesting facts about these fascinating animals. More →

AIM HIGH: Get to know the men and women who defend the United States by air—the U.S. Air Force. More →

Winter storms bring snow, winds, and freezing temperatures. They can be pretty, but also dangerous! Learn how blizzards happen and how we can keep safe and warm. More →

Deadly fires wreak havoc around the world. We try to prevent fires and fight them to keep people and property safe. More →

HONOR, COURAGE, COMMITMENT! Learn about the men and women of the US Navy who defend the United States at sea and guard United States waters. More →

Raccoons are clever, sneaky, and cute! Discover their special body parts and the ways they survive in the wild and in the city, too. More →

Bison are more than North America’s largest land animal. They create and protect delicate habitats. Discover the features and behaviors that make bison so amazing! Sure, they can outrun… More →

Gray Wolves are more than North America’s largest wild canine. They restore and protect wilderness habitats. Discover the features and behaviors that make gray wolves so amazing! Are these… More →

FIRST TO FIGHT: The U.S. Marines help defend the country whenever and wherever they are needed—they are ready to go! More →

Bald Eagles are the symbol of the United States. But at one time, these powerful birds were in danger of extinction. Learn more about these amazing creatures and how they were saved from destruction. More →

ARMY STRONG! Take a first-hand look at the men and women who keep us safe by fighting on land, protecting our country against attacks, and helping out with rescue and aid after natural disasters. More →