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 →

ALWAYS READY: Learn about the Coast Guard and the men and women who battle hurricanes, pirate gangs, pollution, and other threats at home and around the world. 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 →

Moose are more than North America’s largest deer. They survive in the harshest places where few other creatures dare to go. Discover the features and behaviors that make moose so amazing! Can More →

When the sky gets dark and a bad thunderstorm turns into something more, it’s time to take cover. Tornadoes are swirling funnels that can cause lots of damage. Check out how they form and how More →

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

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

Everything around you starts shaking. It’s confusing and scary. But what is it? When tectonic plates collide, earthquakes happen. Shake it up with some safety tips. More →

Red Foxes are easy to spot, with their brightly colored fur and big bushy tails! Learn all about these mammals and how they raise their families in many different habitats. 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 →