Precambrian Era

How old do Scientists believe the Earth is?

• 2.8 billion years old

• 3.2 million years old

• 4.6 billion years old

• 1.2 million years old

Tags

NGSS.MS-ESS1-4

The Precambrian Era accounts for __% of the Earth's existence

Tags

NGSS.MS-ESS1-4

Scientists use __,__,__,and __ to determine Earth's age

• rocks, zircon crystals, moon rocks, meteorites

• streams, rivers, lakes, oceans,

• snakes, frogs, lizards, fish

• cows, horses, dogs, cats

Tags

NGSS.MS-ESS1-4

What led to the formation of water on Earth?

• cooling of the Earth

• heating of the Earth

Tags

NGSS.MS-ESS2-4

What was formed into crust and then continents?

• moon rock

• space dust

• molten rock

• fossils

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-2

What caused microcontinents to collide and fuse together?

• Plate Tectonics

• Volcanoes

• Earthquakes

• Weather

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

The formation of these two things provided a hospitable environment for life to begin on Earth

• oceans and atmosphere

• streams and rivers

• clouds and pollution

• snow and rain

Tags

NGSS.MS-ESS2-4

This gas began to accumulate by photosynthesizing cyanobacteria?

• oxygen

• nitrogen

• carbon

• helium

Tags

NGSS.MS-LS1-6

Evidence for atmospheric oxygen can be found in ____.

Scientists believe life on Earth began how many billion years ago?

• between 1.9 and 1.5 billion years ago

• between 2.3 and 3.2 billion years ago

• between 3.9 and 3.2 billion years ago

• yesterday

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1