How old is a really old rock? When did dinosaurs live and when did they die out?
How do we know how worldwide sea level has changed during ice ages? What living things have been successful on Earth for over 3 billion years? How have the continents moved and over what timeframes? When did humans first appear? What ancient animal's fossils have been found right here on the LPC campus? Has the earth been much hotter than it is today? Has it been much colder? How does radiometric age dating of rocks and fossils work? Historical geology looks at all of these questions and more.