Fossil Formation

What is the final step of fossilization?

• Minerals around the skeleton preserve the bone.

• The animal is covered of layers of dirt and sediment.

• Wind and water erosion expose the fossil to the surface.

• Over time, layers build pressure that turn the layers into stone.

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In the Picture - Where are the oldest fossils of the organisms that lived longest ago found?

• At the bottom layer

• At the top layer

• In the middle layer

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Scientists who study fossils are called

• archeologists

• geologists

• hydrogeologists

• paleontologists

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What does a fossilized jawbone or tooth tell us about that animal?

• The animal's favorite food.

• When the animal lived.

• What the animal ate.

• What color was the animal.

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How are fossils created?

• Traces of organisms harden like rock. 

• Dead organisms are quickly buried for millions of years.

• Animals get trapped.

• All of the above

Which fossil layer is the youngest? 

• Layer A

• Layer B

• Layer C

• Layer D

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The diagram shows layers of sedimentary rock and examples of the fossils each layer contains, Which layer contains the oldest fossils? 

• Layer 2

• Layer 4

• Layer 1

• Layer 3

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What is the primary condition necessary for fossil formation?

• Rapid burial of the organism

• Presence of volcanic activity

• High temperatures

• Exposure to sunlight

Which type of rock is most commonly associated with fossil formation?

• Igneous rock

• Sedimentary rock

• Metamorphic rock

• Volcanic rock

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What role do minerals play in the fossilization process?

• They dissolve the organic material

• They replace the organic material

• They burn the organic material

• They freeze the organic material