Earth History

Created by the convection of the liquid OUTER CORE. Protects the surface of the earth from the sun's harmful solar winds.

• Plate movement

• Magnetic field

• Biosphere

• Crustalsphere

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

outermost and thinnest layer of our planet

• Asthenosphere

• Mantle

• Crust

• Outer core

the thickest layer with a depth between 45-2,900 km

• Crust

• Mantle

• Outer Core

• Inner Core

Calculations indicate that this layer is about 85 percent iron (Fe) with nickel (Ni) metal making up much of the remaining 15 percent of Earth’s volume

• Crust

• Mantle

• Core

the solid, outermost layer that includes the crust and the brittle upper portion of the mantle. This rigid layer is about 100 km thick.

• Asthenosphere

• Lithosphere

• Mesosphere

• Ionosphere

is the plastic part of the earth just below the lithosphere, including the upper mantle.

• Mesophere

• Lithosphere

• Asthenosphere

• Troposphere

refers to the lower portion of the mantle under the lithosphere and the asthenosphere, but above the outer core.

• Mesophere

• Asthenosphere

• Troposphere

• Chromosphere

At one time, the entire universe was confined to a dense, hot, supermassive __________________

• Star

• Ball

• Cloud

• Planet

Tags

NGSS.HS-ESS1-2

About _______ billion years ago, a violent explosion occurred, hurling this material in all directions.

• 8

• 10

• 12.2

• 13.7

Tags

NGSS.HS-ESS1-2

Decay of radioactive elements and heat from high-velocity impacts caused the temperature to________

• increase

• decrease

• stay the same

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4