8-Earth History DCA Review

What is a fossil?

• any dead organism

• the preserved remains or traces of an organism

• a perfect copy of a rock

• an unusual type of rock

The law of superposition states that, in horizontal layers of sedimentary rock, each layer is____________.

• older than the layer below it

• neither older or younger than the other layers

• younger than the layer below it

• always older than any vertical layers

Tags

NGSS.MS-ESS1-4

In which type of rock would you be most likely to find fossils?

• Sedimentary

• Igneous

• Metamorphic

Tags

NGSS.MS-ESS2-3

Fossils provide evidence of__________.

• life in space

• how life and the environment has remined stable over time

• how life and the environmental conditions have changed over time

• how climate and weather has remained stable over time

Tags

NGSS.MS-LS4-1

When scientists estimate the age of a fossil or rock layer based on the age of rocks and fossils found nearby it is called ______________.

• Relational dating

• Relative dating

• Geologic timeline

• Geologic dating

Tags

NGSS.MS-ESS1-4

Which describes how to use relative dating on an IGNEOUS rock?

• the deeper the rock is, the older it is

• Sedimentary rock layers are deposited horizontally

• If an intrusion cuts through rock layers, then the intrusion is younger than the rock layers

• Rock layers in different places/areas can be matched up using fossils

Which statement can best be supported by the fossil record?

• dinosaurs existed on Earth for more than 544 million years

• organisms on Earth have not changed

• most life forms that existed on Earth have become extinct

• humans have lived on Earth throughout geologic history

Tags

NGSS.MS-LS4-1

Which of the organisms listed would make a good index fossil?

• Coral

• Ammonite

• Fern

• Crinoid

Tags

NGSS.MS-LS4-1

Which of the organisms listed would NOT make a good index fossil?

• Ammonite

• Gastropod

• Fern

• Crinoid

• Coral

How would you describe the relative age of the ammonite?

• The ammonite is younger than ferns, but older than trilobites.

• The ammonite is older than trilobites, but younger than ferns

• The ammonite is older than gastropods, but younger than crinoids

• The ammonite is younger than gastropods, but older than crinoids

Tags

NGSS.MS-ESS1-4