D

The diagram shows layers of sedimentary rock in the Earth’s crust. In which layer of rock should a scientist expect to find the oldest fossils?

• Layer M

• Layer N

• Layer O

• Layer P

Tags

NGSS.MS-ESS1-4

The diagram shows layers of sedimentary rocks and examples of their fossils. Which layer contains the oldest fossils?

• Layer 2

• Layer 4

• Layer 1

• Layer 3

Tags

NGSS.MS-ESS1-4

The diagram represents a cross-section of a cliff. It shows several rock layers containing fossils. Which of the following layers of rock is most likely the youngest?

• The layer containing trilobites

• The layer containing fishes

• The layer containing amphibians

• The layer containing dinosaurs

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

Scientists use fossil evidence to determine details about the environment in which the organism lived. The environment is the surroundings in which the organism lived. The picture shows a limestone building block. Which of these BEST shows that the limestone was formed from ocean sediments?

• The position of the fossils

• The number of the fossils

• The type of fossils

• The size of the fossils

Tags

NGSS.MS-LS4-1

Scientists see three layers of rock exposed on the side of a hill. The bottom layer is sandstone with fossils of a certain species of reptile found only in this geographic location. The middle layer is volcanic ash. The top layer is mud stone (shale) with fossils of a different species of reptile. The fossil evidence supports which hypothesis about the extinction of the older reptile species?

• The older reptile species went extinct because sea levels rose and flooded its habitat.

• The older reptile species went extinct because a predator was introduced into the environment.

• The older reptile species went extinct because it could not compete with the younger reptile species

• The older reptile species went extinct because a volcanic eruption caused the environment to change

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

According to the picture above, which layer of sedimentary rocks is the oldest?

• Layer 4

• Layer 3

• Layer 2

• Layer 1

Tags

NGSS.MS-ESS1-4

The diagram shows rock layers next to a road. Layer F contains many plant fossils. Layer F most likely formed in which of these environments?

• Desert

• Forest

• Ocean

• Tundra

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

By examining fossils, scientists think that compared to today, in the past Earth's climate has—

• always been the same

• cooled only during the Ice Age

• warmed and cooled many times

• warmed only since humans started burning fossil fuels

Tags

NGSS.MS-LS4-1

Which fossil below MOST LIKELY comes from the oldest layer?

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Tags

NGSS.MS-ESS1-4

Which fossil comes from the layer that is older than layer 1 but younger than layer 3?

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Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1