Plate Tectonics and Earth's Interior

The North American continent went through a period of rifting or separating about 1.1 billion years ago. During this time, huge amounts of lava poured out of the earth's crust. Some of this volcanic rock can be seen south of Lake Superior in Michigan and Wisconsin. This rifting is also why the upper peninsula of Michigan is rich in copper. What kind of plate interaction caused this mid-continental rift of North America?

• convergent

• divergent

• transform

• ultraform

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

The continental crust is less dense than the oceanic crust.

• True

• False

The Earth's inner core is

• A ball of plasma

• A solid of mostly iron

• Liquid lava

• Hotter than the sun

The lithosphere is...

• The crust and upper mantle of the Earth

• The lower mantle

• The continental crust

• The oceanic crust

Tags

NGSS.MS-ESS3-1

Which layer of crust is more dense?

• The continental crust

• The volcanic crust

• The oceanic crust

• The mountainous crust

True or false: the layers in the Earth get more dense as you go from the surface to the inner core.

• true

• false

How do scientists study magma?

• They drill holes into the mantle and remove samples.

• They study lava samples from volcanoes.

• They study magma samples from Earthquakes.

• They collect magma from the moon

Tags

NGSS.MS-ESS2-1

How do we know what is inside the Earth?

• A large slice was removed with a giant knife for scientists to study.

• The borehole in Russia extended to the inner core.

• Satellite photographs mapped the interior of the Earth

• Seismic waves from Earthquakes and volcanoes travel through the Earth and can be measured.

Subduction Zones are associated with

• Ocean Trench /

  Earthquakes / crust recycling center

• Transform Boundaries / Faults

• Divergent Boundary /

  Sea Floor-Spreading

• Is that the name of the Arcade at the Mall?

Tags

NGSS.MS-ESS2-3

NGSS.MS-ESS3-2

The outer core is _______ and the inner core is ______.

• Liquid, Solid

• Molten Rock, Thinnest

• Solid, Liquid

• Plastic Like, Liquid