Unit 4 Lesson 3 Part II

What causes convection current in the Earth?

• The uneven heating on each layer inside the Earth.

• The crusts outer layer.

• The temperatures we feel outside.

Where does the heat come from that drives this convection current in the mantle?

• the sun
• the core
• the ocean
• the mantle

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NGSS.MS-ESS2-1

___________ is the process by which

new oceanic lithosphere (sea floor) forms as magma rises to Earth’s surface and solidifies at a mid-ocean ridge.

• Continental drift

• Sea-floor spreading

• Plate tectonics

• Mid-ocean range

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NGSS.MS-ESS2-1

At the Mid-Ocean Ridge and active volcanoes you can find:

• fault lines

• earthquakes

• older crust

• newest crust

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NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

What processes causes the lithospheric plates move?

• mountain building

• earthquakes

• convection currents

• water cycle

• subduction zones

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NGSS.MS-ESS2-3

In the process of convection, energy is transferred _________.

• because of temperature differences in a solid

• because of density differences in a liquid

• by the diffusion of molecules throughout a fluid

• by the vibration of molecules

Tags

NGSS.MS-ESS2-4