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.

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.

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.

Science is powerful: with it, we're finding cures for cancer, building supercomputers and cell phones, and keeping people in space. This is a quick overview of how science works (i.e.: the scientific method).

There is also a brief look at the kinds of maps earth scientists use. Some might be a review, but the part on topographic maps is probably new for most of you.

Earth is our only home: how we manage its energy and environmental resources determines our success as a species... in other words, our survival.

Our sun is a pretty ordinary star; just one of billions in the universe. In this course, we'll look at our moon, the sun, earth, the other planets and other common neighbors in our solar neighborhood.

The universe is everything: all the billions of galaxies, each with billions of stars, and all the dust, gas, and empty space in between.  In this course, you'll get an overview of everything: how it began, and how it may end. 

We'll also look at human efforts to explore space so far.

Oceans comprise 71% of earth's surface, and 97% of earth's water. It can be an enormous energy and food resource, if we use it wisely.

We live miles deep in an ocean of air. This course will study our atmosphere, how it protects us, and how it makes our weather.