Fossil Record

Which fossils are found in layer 5.

• A, B

• A, C

• C only

• C, D

What are the oldest fossils and why?

• B, C- because they are closest to the top

• A, B- because they are closest to the bottom

• They are all the same age- because they are all found on layer 2

• A, B- because they are found closest to the top

When did fossil A become extinct?

• Layer 1

• Layer 2

• Layer 3

• Layer 4

Most fossils form when organisms that die become buried in sediments

• True
• False

By determining the age of fossils, scientists can reconstruct the history of life on Earth

• True
• False

According to the law of superposition, which layer is the youngest?

• A
• B
• C

If scientists found this fossil, what could they infer?

• what fish are like today

• that this fish lacked oxygen

• that water once covered the area where this fossil was found

Which of the following can be learned by using the fossil record?

• When organisms changed or evolved

• when organisms appeared on Earth

• when organisms became extinct

• All the above

Which Rock type would be best to find fossils?

• Igneous Rock
• Sedimentary Rock
• Metamorphic Rock

What type of fossil is an imprint in a rock?

• cast 
• trace 
• mold
• whole/part