Caption: The Great Plains cover a large area in the middle of the U.S. between the Mississippi River and the Rocky Mountains.
Earth has seven big land masses. We call them continents. The land is not the same all over the Earth. Some land is rough. Some is smooth. Some places are high. Some are low. There are different landforms.
What is a landform? A landform is a natural physical feature of Earth's surface. This means they are made by nature (natural). They are something we can see and touch (physical).