Sea-Floor Spreading 6th Grade GSE

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-ESS2-3

The OLDEST seafloor is located? 

• Closest to the mid-ocean ridge
• Farthest from the mid-ocean ridge

Tags

NGSS.HS-ESS1-5

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

• True
• False

Tags

NGSS.MS-ESS2-3

NGSS.MS-ESS2-2

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-ESS2-3

NGSS.MS-ESS2-2

NGSS.MS-ESS2-1

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

• False
• True

What tool did scientists use to map the oceans floor?

• Echo-location

• Sonar

• Space Shuttles

• Animals

What are Mid-Ocean Ridges?

• A chain of underwater waterfalls 
• A chain of underwater volcanos
• A chain of underwater mountains
• A chain of underwater rocks

Tags

NGSS.HS-ESS1-5

NGSS.HS-ESS2-1

What is one piece of evidence of seafloor spreading?

• scientist found animals at the bottom of the sea

• mountain rocks crashed into the ocean

• scientist found pillow shaped rocks

Tags

NGSS.MS-ESS2-3

What process takes place at the deep sea trenches?

• divergent boundaries

• subduction

• new crust is formed

• mountain ranges

Tags

NGSS.MS-ESS2-3

___________ 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