Geology is a HUGE science. Think about how many types of rocks there are. And sometimes, we can even find evidence of life in rocks, like dinosaur fossils. Glaciologists climb around on glaciers and study things that have gotten trapped inside them. Marine Geologists examine samples from the oceans, and map out the seafloor.
Paleontologists look at fossils and try to decide where in the fossil record they go.
Vulcanologists study volcanoes. Please e-mail me here .