Rocks, Fossils, and Radioactive Dating

A rock deep within the Earth experiences extreme temperature and pressure. After a long period of time it becomes which rock?

• Magma

• Igneous

• Metamorphic

• Sedimentary

Tags

NGSS.HS-ESS2-3

A geologist is studying three layers of sedimentary rock in an area. The layers have not shifted from their original positions. The geologist records the relative ages of the rocks. What did the geologist use to determine the relative ages of the rocks?

• Radioactive dating

• Mineral content

• Absolute dating

• The Law of Superposition

Tags

NGSS.MS-ESS1-4

The top layer of sediments in a sedimentary rocks is...

• The newest and youngest layer.
• The oldest layer.
• The only layer that is made from pebbles.
• The second layer of sediments.

Tags

NGSS.MS-ESS1-4

This fossil is an example of________

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

Tags

NGSS.MS-LS4-1

The remains, or traces on once-living organisms are called fossils.

• true
• false

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

Preserved footprints, or fossilized scat are examples of _________

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

Tags

NGSS.MS-LS4-1

_{Which rock layer contains the newest fossils?}

• F
• E
• B
• C

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

According to the law of superposition, the oldest fossils are found 

• At the top of the rock layers
• Near the bottom of the rock layers
• In the middle of the rock layers
• Somewhat near the surface

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-3

Index fossils help determine relative age through correlating rock layers.

• True
• False

Tags

NGSS.MS-ESS1-4

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

Tags

NGSS.MS-ESS1-4