Geology DVD is the history of Earth. It is innumerable mysteries that scientists unravel to understand how the Earth has evolved. You'll learn everything from absolute and relative dating and the geologic time scale to the fundamental principles of Geology. You'll learn about minerals, crystalline structures, and different types of rocks, and all about volcanoes and lava. This is a highly informative but fun product, featuring actors and professional comedians to ensure you're entertained while you learn. You will be impressed, intrigued, and highly entertained by this product.