Introduction to Plate Tectonics/ Seafloor Spreading

Front

What are Earth's plates?

Back

Earth's plates are constantly moving and changing the face of the earth.

Tags

NGSS.MS-ESS2-3

Front

What evidence did Wegener use to support his hypothesis of Continental Drift?

Back

Wegener used matching fossils of the same organisms on different continents.

Tags

NGSS.MS-LS4-1

Front

What does the word Pangea mean?

Back

Pangea means 'all land'.

Front

Where is the youngest seafloor located in the Atlantic Ocean?

Back

The youngest seafloor is located towards the middle of the ocean.

Tags

NGSS.HS-ESS1-5

Front

Who first proposed the idea of seafloor spreading?

Back

Harry Hess proposed the idea of seafloor spreading.

Tags

NGSS.MS-ESS2-3

Front

What is the theory of Plate Tectonics?

Back

The theory of Plate Tectonics explains how the Earth's plates move and interact, leading to geological phenomena.

Tags

NGSS.MS-ESS2-3

Front

What are tectonic plates made of?

Back

Tectonic plates are made of the Earth's lithosphere, which includes the crust and the upper mantle.

Tags

NGSS.MS-ESS2-1

Front

What is seafloor spreading?

Back

Seafloor spreading is the process by which new oceanic crust is formed at mid-ocean ridges and older crust is pushed away.

Tags

NGSS.MS-ESS2-3

Front

What geological features are formed at convergent boundaries?

Back

At convergent boundaries, geological features such as mountains, deep ocean trenches, and volcanic arcs are formed.

Front

What happens at divergent boundaries?

Back

At divergent boundaries, tectonic plates move apart, leading to the formation of new crust and mid-ocean ridges.