Geologic Time Scale Introduction

Use the diagram to answer: which fossil is older than the fish fossil?

• A

• B

• C

• D

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

What evidence do scientists use to determine the age of the earth?

• Absolute and relative dating of rocks and fossils, and the fossil record.

• 4.6 billion years old

• relative age

• The rocks are probably the same age.

Tags

NGSS.MS-ESS1-4

Approximately how old is the Earth?

• 4.6 b.y.

• 4.6 m. y.

• 2.4 b. y.

• 2.4 m. y.

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NGSS.MS-ESS1-4

If the same index fossils are found in different rock strata miles apart, what is probably true about the rock layers?

• Rock layers are pretty.

• The rocks are different age.

• Fossils

• The rocks are probably the same age.

Tags

NGSS.MS-ESS1-4

Preserved remains of plants and animals from the remote past are called _____.

• Plants

• Fossils

• Animals

• Insects

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

In which time period are we currently living in?

• Precambrian Era

• Paleozoic Era

• Mesozoic Era

• Cenozoic Era

Jellyfish are one of the oldest species on Earth. In what time period did they first appear?

• Precambrian

• Paleozoic

• Mesozoic

• Cenozoic

Tags

NGSS.MS-LS4-1

Which era was the longest, taking up 88% of geologic time?

• Precambrian

• Paleozoic

• Mesozoic

• Cenozoic

Tags

NGSS.MS-ESS1-4

Which rock layer is oldest from Site 1?

• G

• B

• A

• E

Tags

NGSS.MS-ESS1-4

Which of the fossils is the oldest?

• Dinosaur

• Bird

• Shell

• Ammonite

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1