Earth’s Four Spheres Atmosphere: gaseous part of Earth Hydrosphere: liquid part of the Earth Biosphere: living part of Earth Lithosphere: solid part of Earth We will spend the next few months on Geology!
The Shape of the Land Topography: the shape of the land The ground looks like it does because of internal and external forces constantly changing its shape. Think about the “shape” of Shaler…. Why does it look this way? Topography is determined by three different things…
Topography Characteristics Elevation: height above sea level Relief: difference between high and low points Landforms: features of topography that shape the land Topographic Map
3 Types of Landforms Plains Low elevation Low relief Two types of Plains Coastal Interior
3 Types of Landforms (continued) Mountains High elevation High relief Mountains are arranged into: Ranges Systems Belts
3 Types of Landforms (continued) Plateaus High elevation Low relief Canyons form on plateaus
Lewis and Clark In 1804, an expedition set out from St. Louis to explore the land between the Mississippi River and the Pacific Ocean. The United States had just purchased a part of this vast territory, called Louisiana, from France. (The Louisiana Purchase)
Lewis and Clark (continued)The purpose of the expedition was to map America’s interior. They saw many unique landforms along the way.
Landforms Review:Using the words High and Low, describe the following landforms. Plains have _____ elevation and _____ relief. Plateaus have_____ elevation and _____ relief. Mountains have_____ elevation and _____ relief.
This is your country… it is important that you can identify and label the location of the major landforms in the United States!Directions: Label and shade in the following landforms on the provided mapand then answer the seven questions.