Grade 3 - 5

Before technology and maps there were boats and explorers. Lewis and Clark led the Corps of Discovery through previously unmapped lands in the west of the United States. With the help of… More →

The muscular system keeps us on the move. Whether chasing a soccer ball, playing video games, or even just breathing, every movement we make relies on muscles. Explore more about this… More →

The nervous system keeps your body running. Not only is it in charge of thoughts, feelings, and memories, but it also keeps the body moving and running properly. Explore more about this… More →

The president makes sure everybody follows the laws. They are responsible for keeping the federal government moving. But what do you know about this important office of government? Explore… More →

With elements all around, how can students--or even scientists--keep them straight? That's where the periodic table comes into play. Learn all about the way the table is organized, the… More →

The respiratory system helps the body take in the oxygen it needs to survive. A branching network of tubes takes oxygen into the lungs to get the job done. Explore more about this important… More →

American colonists were sick of following the rules of a government across the ocean. So, they fought back in the Revolutionary War. Learn about the war that changed history with… More →

China has some of the oldest history on Earth. But what do we know about the people, dynasties, and wars that shaped this ancient civilization? Explore more about the rise and fall of ancient More →

Everybody has heard of the pyramids and mummies of Egypt. But what do we really know about the people, rulers, and conflicts that shaped this ancient civilization? Explore more about the rise More →

Greece was once one of the most prominent civilizations in the world. What led to its impressive power and amazing accomplishments? Explore more about the rise and fall of ancient Greece with More →

The Roman civilization lives on in our daily calendar and even the way we speak. But what do we really know about the military leaders, political structure, and ultimate demise of this… More →

Travel back to the cradle of civilization to see how the first advanced communities took shape in Mesopotamia. From creating systems of writing and mathematics, to the advent of the wheel,… More →