Earth's HIstory

In which time period are we currently living?

• A. Precambrian Time

• B. Paleozoic Era

• C. Mesozoic Era

• D. Cenozoic Era

Tags

NGSS.MS-ESS1-4

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

• A. Precambrian Time

• B. Paleozoic Era

• C. Mesozoic Era

• D. Cenozoic Era

Tags

NGSS.MS-LS4-1

In what time period did Pangaea, the super continent, appear?

• A. Precambrian Time

• B. Paleozoic Era

• C. Mesozoic Era

• D. Cenozoic Era

Tags

NGSS.MS-ESS1-4

Dinosaurs, small mammals, and birds are found in this time period.

• A. Precambrian Time

• B. Paleozoic Era

• C. Mesozoic Era

• D. Cenozoic Era

Tags

NGSS.MS-LS4-1

5. Which time period is the longest?

• A. Precambrian Time

• B. Paleozoic Era

• C. Mesozoic Era

• D. Cenozoic Era

Tags

NGSS.MS-ESS1-4

What does “relative age” tell about rock layers or fossils?

• The age of one rock layer or fossil compared to another.

• The rock or fossil is easily recognizable

• The “exact” age of a fossil determined by half life of radioactive elements

Tags

NGSS.MS-ESS1-4

What does “absolute age” tell about a rock layer or fossil?

• The “exact” age of a fossil determined by half life of radioactive elements

• The age of one rock layer or fossil compared to another

• The rocks are probably the same age.

Tags

NGSS.MS-ESS1-4

Name at least two characterizes of index fossils.

• Easily recognizable, abundant, small geographic distribution, Live a long period time.

• Easily recognizable, abundant, wide geographic distribution, Live a short time.

• Can be found is all layers, abundant, Live a long period of time.

Tags

NGSS.MS-LS4-1

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

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

• Ice aging

• Birth certificate

• Asking to Earths Mother

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

Approximately how old is the Earth?

• 3.6 b.y

• 4.6 b.y

• 7.3 b.y

• 1.5 bY

Tags

NGSS.MS-ESS1-4