IQWST ES3 Lessons 4 & 5

What supports plate movement?

• Convection current in the crust

• Convection current in the mantle

• Convection current in the core

• Volcanic Eruptions

Tags

NGSS.MS-ESS2-3

True or False: The effect of the convection current is that it only keeps the plates afloat.

• True

• False

Tags

NGSS.MS-ESS2-3

Which of the following is true about the oceanic crust?

• It's younger than the continental crust

• It's less dense than the continental crust

• It's thicker than the continental crust

• It's made of all different kinds of things

What is true about the age of the oceanic crust?

• It is youngest by the continents

• it is oldest at the ridge

• It is oldest by the continents

• It's the same age all the way across

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-2

What happens to oceanic crust at a convergent boundary?

• It becomes the overriding plate

• It becomes continental lithosphere

• Nothing

• It subducts

Tags

NGSS.MS-ESS2-3

What causes convection in the mantle?

• Heat from the core of the Earth

• The sun

• Magnetic poles

• The moving plates

What is the mantle?

• A layer of the Earth just under the tectonic plates

• Molten rock below the Earth's crust

• Molten rock above the Earth's crust

What is magma?

• A layer of the Earth just under the tectonic plates.

• Molten rock below the Earth's crust

• Molten rock above the Earth's crust

What is lava?

• A layer of the Earth just under the tectonic plates

• Molten rock below the Earth's crust

• Molten rock above the Earth's crust

What determines the direction the plates move

• The plates move in the same direction as the top of the convection cell.

• The plates move in random paths

• The plates move the in the same direction as the bottom of the convection cells

• The plates don't move

Tags

NGSS.MS-ESS2-3