History of Life on Earth (pgs 38-49)

The division of Earth's history of 4.6-billion-years into manageable parts is the:

• fossil

• extinction

• fossil record

• geologic time scale

Tags

NGSS.MS-ESS1-4

The Earth's environment has changed a lot in 4.6 billion years. Many organisms could not adapt in these conditions. When species die out, it leads to mass ________________.

• fossils

• extinction

• evolution

• adaptations

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NGSS.MS-LS4-1

NGSS.MS-LS2-4

Look at the fossil record. What can scientists conclude?

• Life started on land.

• Life started in water.

• Life started in water and land around the same time.

• Life has not changed, and living things do not evolve.

Tags

NGSS.MS-LS4-1

The four major divisions that make up the history of Earth are the: Precambrian time, Paleozoic era, Mesozoic era and Cenozoic era.

• true

• false

Tags

NGSS.MS-ESS1-4

Which division of geological time would you find these?

• Precambrian

• Paleozoic

• Mesozoic

• Cenozoic

Tags

NGSS.MS-ESS2-2

Cyanobacteria was important 3.6 billion years as it is today, because it helps:

• make carbon dioxide

• release oxygen in the ocean and atmosphere

• let the oceans form

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

The fossil record shows that life forms have changed over time. Evidence shows that life moved onto land _________ of years ago.

• hundreds

• thousands

• millions

• billions

Tags

NGSS.MS-LS4-1

Click and study the picture. Which is true?

• Humans have been on Earth since life began.

• Humans were around during the time of the dinosaurs.

• Humans are a fairly new species.

Tags

NGSS.MS-LS4-1

NGSS.MS-ESS1-4

Primates are a fairly new species. They evolved in the past 50 million years. Which of these are primates?

• humans

• apes

• monkeys

• All the above

Tags

NGSS.MS-LS4-2

Evidence shows that dinosaurs went extinct around 65 MYA when an asteroid hit the Earth. Which of the following caused the dinosaurs to become extinct?

• most were hit by rocks causing instant death

• massive volcanic eruptions burned most of them

• giant dust clouds blocked the sun causing many plants to die, which destroyed global food webs

Tags

NGSS.MS-LS4-1