Do Now - 12/9 - Science

Front

What is the process of one plate sliding under another?

Back

Subduction is the process where one tectonic plate moves under another and sinks into the mantle.

Front

Why does oceanic crust always subduct?

Back

Oceanic crust is more dense than continental crust, which causes it to subduct.

Front

What happens to crust at a convergent plate boundary?

Back

At a convergent plate boundary, crust is destroyed as plates collide.

Front

What occurs when crustal plates come together?

Back

When crustal plates come together, it is known as a convergent plate boundary.

Front

Which rock layer in a geological diagram is typically the oldest?

Back

The bottom layer (often labeled A) is usually the oldest due to the principle of superposition.

Front

Define tectonic plates.

Back

Tectonic plates are large sections of the Earth's lithosphere that move and interact at their boundaries.

Front

What is the lithosphere?

Back

The lithosphere is the rigid outer layer of the Earth, consisting of the crust and upper mantle.

Front

Explain the term 'convergent boundary'.

Back

A convergent boundary is where two tectonic plates move towards each other, often causing one plate to subduct.

Front

What is subduction?

Back

Subduction is the process where an oceanic plate sinks beneath a continental plate or another oceanic plate.

Front

What is the difference between oceanic and continental crust?

Back

Oceanic crust is denser and thinner than continental crust, which is thicker and less dense.