History of Earth

According to scientists, both Earth and moon are...

• About 1.6 Billion Years Old
• About 4.6 Billion Years Old
• About 9.6 Billion Years Old
• About 14 Billion Years Old

Tags

NGSS.HS-ESS1-6

Label the layers of the earth:

a

b

c

d

Inner Core

Crust

Outer Core

Mantle

Tags

NGSS.MS-ESS2-1

Which of the following is true about the early days of the earth? (Choose 2)

• It was very hot

• It was very cold

• There was a lot of water in oceans and oxygen in the atmosphere

• There was water vapor in the atmosphere and no oxygen present

When the earth started to ​ (a)   , layers of earth started to ​ (b)   in the process of differentiation.

• cool
• form
• heat up
• disappear

Tags

NGSS.MS-ESS2-1

Where are the heaviest elements, like iron, found in the highest concentrations?

Tags

NGSS.MS-ESS3-1

Which of the layers in the density column is the most dense and where you would find heavier substances?

Which of the layers in the density column is the least dense and where you would find lighter substances?

What gases did volcanoes contribute to the early earth's atmosphere?

• Oxygen

• Water and Oxygen

• CO2 and N2

• CO2 and Oxygen

After volcanoes released CO2 what organisms were able to use it to make their own energy?

• Mammals

• Bugs

• Photosynthetic Bacteria

• Dinosaurs

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What is a waste product that photosynthetic bacteria produce?

• CO2

• Oxygen

• Sugar

• Sunlight

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3