Oceans Geology

Where did the oceans come from?

• Comets, meteors and volcanoes

• Rivers and glaciers

• They were just there when the Earth was formed

• Rain, snow, sleet and hail

What % of Earth’s water do the oceans make up?

• 51%

• 82%

• 75%

• 87%

How many major deep water masses are there?

• 10

• 3

• 5

• 7

What influences the tides?

• The sun only

• The moon only

• The sun and moon

• The direction the wind is blowing

Tags

NGSS.MS-ESS1-1

Select what is true of the Global Conveyor Belt

• Unchanging movement of water

• Only flows through the surface of the ocean

• Is only in the deepest parts of the ocean

• Formed from density currents

Tags

NGSS.MS-ESS2-6

The oceanic crust is primarily comprised of:

• granite-type rock

• basalt-type rock

• quartz-type rock

• silicon-type rock

A region where old oceanic crust is being driven under another oceanic plate is called:

• a spreading center

• a midocean ridge

• a seamount

• a subduction zone

Tags

NGSS.MS-ESS2-3

A community of marine organisms that depend on the specialized environment found at rift zones in the ocean floor is...

• rift community

• rift zones

• oceanic basaltic crust

• fracture zones

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

A process by which magma driven by convection currents is turned back by the lithosphere, moves laterally (meaning sideways) and descends, causing lateral (sideways) movement of earth's crust

• escarpments

• subduction zones

• seafloor spreading

• rift zones

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

Linear region of unusually irregular ocean bottom that runs perpendicular to ocean ridges.

• transform fault

• fracture zones

• continental drift

• midocean ridge

Tags

NGSS.MS-ESS2-3