This part of it, anyway. This part of the chapter we're learning is easy, but it's the other part that is a little more difficult.
Now, I shall study a little for a science test which I'm not too sure about because I have to memorize types of fossils, radiometric dating, etc...And a bunch of math-related science work with parent/daughter isotopes, which I have no idea how to do so I really need to study and try to get it.