Earth History

Match it! Select the correct answer from the pull down...Good luck!

What does the Law of Superposition tell us?

___________ forms due to lava cooling and hardening on Earth's surface.

Which era was the 'age of dinosaurs'?

___________ needs two ingredients to form: heat and pressure

If you find a fossil from an unknown era near a known fossil, what can you tell about age?

Which is more exact in telling how old a fossil is?

A vestigial structure is best described as ________.

What is the largest unit of geologic time?