Fossil Evidence

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

• A. Layer 2
• B. Layer 4
• C. Layer 1
• D. Layer 3

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____________________ is a scientist who studies fossils.

• paleontologist 
•  fossil
• preserved
• extinct

  A _____________________ is the remains or evidence of an   ancient organism.

• paleontologist 
•  fossil
• preserved
• extinct

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Why is it important to study fossils?

•  Fossils are evidence of organisms that lived long ago.
• Fossils are fortune tellers.
• Fossils are fun to study.
• Fossils are found everywhere in the world.

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Earth's first atmosphere was made of the gases: 

• oxygen and helium
• nitrogen and oxygen
• hydrogen and helium
• oxygen and hydrogen

This fossil is an example of________

• trace fossil
• carbonized fossil
• frozen remains
• tar pit fossil

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Preserved footprints, or fossilized scat are examples of _________

• trace fossils
• carbonized fossils
• cast fossils
• mold fossils

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This fossil forms when minerals in water slowly replace the organisms tissues.

• carbonized fossil
• permineralized fossil
• trace fossil
• petrified wood

An amber fossil forms when an organism gets stuck in sticky __________, which eventually hardens around it.

• tree sap
• tar
• cement
• syrup

The impression of an organism's body shape left in sediment is called a cast fossil

• true
• false

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