Interior of Earth

What are the 2 sources of Earth's internal heat energy? select 2

• Radioactive decay

• Sunlight

• Heat of formation (of the Earth)

• Moonlight

Tags

NGSS.HS-ESS2-3

The Earth's internal temperature is in an equilibrium, which means its creating as much heat as it's losing. What process is causing the heat inside the Earth?

• Heat of formation is still happening

• Radioactive decay is releasing heat inside Earth

• Earth is still being bombarded by meteorites

• The Sun is the source of Earth's interior heat

Which of Earth's layers are separated based on chemical composition?

• Crust, Inner Core, Outer Core, Mantle

• Lithosphere, Athenosphere, Mesosphere

• Crust, Mantle, Core

• Lithosphere, Athenosphere, Mesosphere, Inner Core, Outer Core

Which process the best explains how heat moves inside the earth?

• Heat from the asthenosphere sinks to the outer core

• Heat from the lithosphere sinks to the asthenosphere

• Heat from the outer core rises through the mesosphere

• Heat from the mesosphere is distributed evenly throughout Earth

Tags

NGSS.MS-ESS2-1

NGSS.MS-PS3-4

Earthquake waves can be used to determine the density of Earth's crust. How does this work?

• The earthquake waves are blocked, so it shows the layers are solid.

• The earthquake waves are shortened, showing the layers are made of the same material

• The earthquake waves are lengthened, showing the mantle is made of water and salt

• The earthquake waves travel at different speeds, showing that the layers have different compositions

Tags

NGSS.MS-PS4-2

Meteorites often are used to infer the structure of internal Earth? Why?

• All materials from space are made only of iron

• Traveling through the atmosphere alters the meteorites

• Meteorites and the Earth were both formed at the same time from the same nebula

• Meteorites were once part of Earth

Tags

NGSS.HS-ESS1-6

The lithosphere floats on top of the asthenoshpere, how are the two layers separated?

• The layers have different chemical properties

• The layers have different physical properties

• The lithosphere has a higher density than the Asthenosphere

• The asthenosphere is made of different materials than the lithosphere

What indirect evidence is used to assume that the outer core is liquid?

• Dense rock samples from drill holes from the crust

• Lightweight crustal rock are first made in the outer core

• Heat from volcanic lava

• Seismic waves decrease in speed when they reach the outer core

What process causes movement of earths tectonic plates?

• The spinning of Earth gives the plates energy to move the continents

• They move when he creates convection currents in the earths mantle

• They are floating in the ocean and move randomly

• They move when volcanoes erupt and earthquake faults slip

Tags

NGSS.MS-ESS2-3

What does "chemical composition" refer to?

• How Earth's layers interact with one another

• Chemical reactions that take place in Earth's layers

• The kinds of atoms and molecules Earth's layers are made of

• The physical properties of Earth's layers

Tags

NGSS.MS-PS1-1