Fossils and Geologic Time

How old do Paleontologists believe the Earth is?

• 2015 years old
• 3.6 billion years old
• 4.6 billion years old
• 4.6 million years old

The law of superposition tells us that the lower the rock layer, _______.

• the younger the rocks get
• the smellier the rocks get
• the harder the rocks get
• the older the rocks get

The Law of Superposition helps scientists to determine what?

• The absolute age of rock layers
• The age of fossils
• The relative age of rock layers
• the super powers of rocks

A scientist who studies fossils is called a what?

• Fossilologist
• Rock Hound
• Archeologist
• Paleontologist

What 2 things make a good index fossil?

• Good looks and a great smile
• widespread and on Earth for a short time
• widespread and on Earth for a long time
• a fossil found in every rock layer

What type of rock do fossils form in?

• Igneous
• Sedimentary
• Metamorphic
• Classic

_{Which rock layer in the diagram seems to be the oldest?}

• F
• E
• B
• A

What might you conclude if a fish fossil was found on top of a mountain in Kentucky?

• An Earthquake happened there.
• A Volcano erupted there.
• A forest covered that area for a while.
• A Sea once covered the area.

What can we learn from fossils?

• How earthquakes formed.
• How erosion changed mountains
• How Earth's magnetic field was formed
• How Earth's environment has changed

What is the largest division of time?

• Eon
• Epic
• Era
• Period