Fossil Layers

Which layer of sedimentary rock is the oldest?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-ESS1-4

The diagram above 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

NGSS.MS-LS4-1

This picture shows layers of the earth and the fossils found in each. The youngest fossils would be found in-

• top layers of rock

• the middle rock layers

• the bottom layers of rock

• every layer

Tags

NGSS.MS-ESS1-4

The diagram above 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

NGSS.MS-ESS2-3

Certain fossils can be used to help determine the age of the rock layer in which the fossils are found. Which type of fossil is BEST to use when making this determination?

• marine mammal fossil

• swamp fern fossil

• trace fossil

• index fossil

Tags

NGSS.MS-ESS1-4

Your class took a field trip to examine a series of rock layers and the fossils in the rock. The rock layers and samples of the rocks and fossils are shown in the picture. Which fossil is the youngest?

• Trilobite

• Clamshell

• Dinosaur Bone

• Cow skull

Tags

NGSS.MS-ESS1-4

Sara was studying the methods scientists use to determine the ages of the rock layers. She was particularly interested in the use of index fossils.

After looking at the picture, she noticed that the rock layers at Location 4 differed from the other three locations. What likely occurred at Location 4?

• • Layer B isn't shown due to the absence of index fossils.

• • Location 4 held index fossils similar to the other locations.

• • Location 4 had heavy erosion and soon a layer of rock will be deposited on top of it.

• Layer B eroded away and layers C and D were deposited on top of layer A at a later time.

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-3

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

Tags

NGSS.MS-ESS1-4

In which kind of rock do we usually find a fossil?

• sedimentary  rock

• metamorphic rock

• igneous rock

Tags

NGSS.MS-ESS2-3

NGSS.MS-LS4-1

What do geologists study to learn about Earth's history?

• Stars

• Plants

• Rocks and fossils

• Weather patterns

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-3

NGSS.MS-LS4-1