Fossils

Fossils are made of _____.

• rocks
• bones
• dirt

An index fossil _____________

• has a long life and is not widespread
• has a short life and is widespead
• has a short life and is not widespread

A fossil found on the bottom is the ________.

• oldest
• youngest

Which animal is the youngest in site 1?

• bird
• ammonite 
• shell

Which animal is the oldest in site 1?

• trilobite
• bird
• shell

In layer G what animal is present?

• mammal
• dinosaur
• trilobite

What animal is present in layer D?

• dinosaur
• bird
• shell

What kind of fossil is this?

• trilobite
• crinoid
• fern

What is superposition?

• young is above old
• young is the same as old
• old is above young

What is relative dating?

• when an object is older or younger compared to an event
• when an object is the same as an event