Seafloor Spreading Subduction

Massive pieces of land that are part of the Earth's crust and upper mantle

• Tectonic plates

• Trenches

• Divergent boundary

• Continental shelves

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-2

The deepest part of the ocean; long, narrow ditches

• Tectonic plates

• Trenches

• Divergent boundary

• Continental shelves

___________ help explain why Earth is not getting any larger even though the tectonic plates are always moving.

• earthquakes

• subduction zones

• fossils

• volcanoes

Tags

NGSS.MS-ESS2-2

The OLDEST seafloor is located?

• Closest to the mid-ocean ridge

• Farthest from the mid-ocean ridge

Tags

NGSS.MS-ESS2-3

True or False : Sea-floor Spreading adds new material to the ocean floor?

• True

• False

What happens when Subduction occurs?

• Parts of the crust fall into the mantle

• Parts of the crust fall into the core

• Parts of the crust fall into space

• None of these

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

True or false : Deep-Ocean Trenches are underwater canyons?

• False

• True

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

What did scientists use to map the oceans floor?

• Echo-location

• Sonar

• Space Shuttles

• Animals

Tags

NGSS.MS-PS4-2

What process takes place at the trenches?

• divergent boundaries

• subduction

• new crust is formed

• mountain ranges

Tags

NGSS.HS-ESS1-5

The oceanic crust is pushed aside on both sides of the

• Continent's edge

• Deep-ocean trench

• Mid-ocean ridge

Tags

NGSS.HS-ESS1-5

NGSS.HS-ESS2-1