Astronomy, Geology, Meteorology and Oceanography.

Earth Science -review for Tests

Rocks at earth's surface don't last long; at least on geologic time. Water, ice and wind carry bits of rock (sediments) downhill. We'll look at surface geologic processes in this unit, including weathering, erosion, rivers, groundwater, soil and glaciers.

The first scientist to suggest that continents move was ridiculed; now we know it's true. The earth's crust floats around on a semi-liquid mantle, and that causes most earthquakes and volcanoes. In this course, we'll see how that and other geologic forces shape  and re-shape the solid earth.

For over 4 billion years, earth has been making and remaking rocks. In this course, we'll learn what rocks can tell us about the earth, and which ones are common or useful.