Plate Tectonics and Boundaries

What type of plate boundary is the result of two tectonic plates moving toward one another?

• divergent

• convergent

• transform

• convection

Why does oceanic crust tend to go under continental crust when they collide?

• Because it is less dense

• Because the magma pulls it down

• Because it is more dense

• Because the ocean is pushing it down

Match the following

• Boundary where two plates slide past each other

• Divergent Boundary

• Boundary where two plates collide

• Subduction Zone

• Process causing the plates to move

• Convergent Boundary

• Area where one tectonic plate moves under another

• Convection

• Boundary where two plates move apart

• Transform Boundary

Choose the area where a trench is formed.

Use the cross-section drawing of the Earth to show convection in the mantle. Please make sure to use arrows to show the direction materials are moving.

(a)   crust is​ less dense than​ (b)   crust.

• continental
• oceanic

A divergent fault can create:

• ridges or long mountain ranges

• rift valleys

• thunderstorms

• tornadoes

Organize these options into the right categories

Groups:

(a) Continental Crust

,

(b) Oceanic Crust

• Is thinner

• Has a density of about 3.3 g/cm3

• Is where humans live

• Is more dense

• Is thicker

• Has a density of about 2.7 g/cm3

In this section, do your best to explain in simple terms how convection in the earth's mantle makes the continents move. You may use Internet research to help you but NOT any AI programs. Some words you may want to add to your explanation are listed below:

(density, hotter, cooler, rising, sinking, cycle)

Reorder the following layers of the earth starting at the surface and going all the way to the center.

• Inner Core

• Mantle

• Asthenosphere

• Crust

• Outer Core