Geologic History and the Evolution of Life

What are Eons

• Subdivisions of Eras

• Subdivisions of Periods

• Subdivisions of Epochs

• The longest unit of geologic time

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NGSS.MS-ESS1-4

What is mass extinction?

• The extinction of many organisms in one species over a short period of time

• The extinction of many species in a short period of time

• The extinction of many species in a long period of time

• The death of many organisms in a short period of time

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What could cause extinction?

• Meteorite Impact

• A small storm

• Tsunami

• Large Volcanic Eruption

• Changes in Climate

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NGSS.MS-ESS3-2

NGSS.MS-LS4-1

Life has been evolving for...

• Hundreds of Thousands of Years

• Millions of Years

• Billions of Years

• Billions of Months

• Since you were born

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NGSS.MS-LS4-1

NGSS.MS-LS4-2

Older Rock contains... while younger rock contains ...

• More Complex Life-Forms, Simple Life-Forms

• Simple Life-Forms, More Complex Life-Forms

• Less Complex Life-Forms, More Simple Life-Forms

• Communities of Lava-Dwelling Lizards, A Layer of Pure Magnetite

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

Geologists used _______ changes in the fossil record to mark divisions in geologic time

• Sudden

• Early

• Slight

• Meteorological

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NGSS.MS-LS4-1

What was the Timeline of Earth's past created by geologists to model Earth's geologic history called?

• Geologic Time Map

• Geologic Era Scale

• Geologic Meteorite Impact Timeline

• Geologic Time Scale

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NGSS.MS-ESS1-4

What Era do we live in?

• Ordovician

• Cenozoic

• Paleozoic

• Jurassic

How old are the oldest known fossils

• 1 million years old

• 125,000 years old

• 3.5 Billion years old

• 3.5 Trillion years old

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NGSS.MS-LS4-1

What is Geographic Isolation

• Occurs when a population of a certain species are "ganged up on" by other species and surrounded in a valley or at the top of a hill and attacked.

• The separation of a population of organisms from the rest of it's species due to some physical barrier, such as a mountain range or ocean

• A fossil that has no other fossils of it's species near it

• Occurs when a population of organisms becomes the top of the food chain but in other habitats, other populations of that species are not the top of the food chain.

Tags

NGSS.HS-LS4-2

NGSS.HS-LS4-4