Ocean Ridges

Presentation

•

Science

•

8th Grade

•

Hard

Joseph Anderson

FREE Resource

16 Slides • 7 Questions

Multiple Choice

If the grasshopper were to be removed completely from the food web, what organism would be most effected?

The squirrel

The shrew

The deer

The rabbit

Multiple Choice

During sea floor spreading, molten material rises up from the mantle...

along the continents

at the mid ocean ridges

deep ocean trenches

at north and south poles

Multiple Choice

Why does oceanic crust sink below the continental crust during subduction

oceanic crust is less dense

oceanic crust is more dense

oceanic crust is older

oceanic crust is warmer

Multiple Choice

What is the source of energy that drives plate movement?

the subducton of the sea floor

the different densities of the oceanic and crustal plates

convection currents in the asthenosphere

the friction force between the plates that move past each other

The Earth's crust is broken into plates and where they meet are called plate boundaries
Plates interact with each other at these boundaries

Plate Boundaries

Multiple Choice

Convergent Plate Movement can create

Rifts

Mountains

Ocean Ridges

Radiation

Multiple Choice

A plate boundary where two plates move away from each other is called

Divergent Boundary

Convergent Boundary

Transform Boundary

Subduction

Multiple Choice

Where are earthquakes MOST LIKELY to occur?

close to the equator

close to the center of tectonic plates

at divergent or convergent plate boundaries

at transform plate boundaries

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