NGSS.4-ESS1-1

Use the diagram and relative dating to determine what is the oldest layer. 

• The bottom layer will contain the oldest fossils
• The top layer will contain the oldest fossils
• It is impossible to tell which layer contains the oldest fossils with out absolute dating
• Layer A and C contain fossils from the same period

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NGSS.4-ESS1-1

Some students made a model to show one of the first steps in the formation of sedimentary rock.  The students pour 2 cm of light-colored sand into a clear plastic box.  Then they add 1 cm of gravel.  Finally, they pour 2 cm of dark-colored sand on top of the gravel.  Which characteristic of sedimentary rock does this model best show?

• A. Sedimentary rock is made of layers.
• B. Sedimentary rock is cemented bits of rock.
• C. Sedimentary rock is often limestone.
• D. Sedimentary rock is common in Texas.

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NGSS.4-ESS1-1

Sedimentary rocks form when broken bits of other rock are deposited and then -

• A. buried and squeezed and cemented together. 
• B. melted by the heat of the Earth's core
• C. completely dissolved in the salt water of the ocean 
• D. used by humans as a natural resource

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NGSS.4-ESS1-1

The system of time measurement involving the formation of and changes of the Earth. 

• Index Fossil 
• Geologic Time Scale 
• Law of Superposition 
• Preserved Fossil 

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NGSS.4-ESS1-1

Rock made of layers of compressed sediments

• metamorphic rock
• igneous rock
• sedimentary rock
• school house rock

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NGSS.4-ESS1-1

What could have caused this rock formation to form?

• wind

• ice

• water

• both wind and water

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NGSS.4-ESS1-1

Which layer of sedimentary rock is the oldest?

• 1

• 2

• 3

• 4

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NGSS.4-ESS1-1

Which layer of sedimentary rock is the oldest?

• 1

• 2

• 3

• 4

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NGSS.4-ESS1-1

This rock is formed in layers.

• Sedimentary

• Igneous

• Metamorphic

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NGSS.4-ESS1-1

Which rocks are the youngest in this photo?

• the rocks at the top
• the rocks at the bottom
• the rocks on the right side
• the rocks on the left side

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NGSS.4-ESS1-1