Plate Tectonics Quiz

What theory did Wegner propose?

• That all the continents were once connected in one large land mass, called Pangea

• That the Earth is flat

• That the sun revolves around the Earth

• That dinosaurs still exist

What are divergent plate boundaries?

• Two plates that are moving away from each other

• Two plates that are colliding

• Two plates that are stationary

• Two plates that are moving towards each other

What are convergent plate boundaries?

• Where two plates are pushing into each other

• Where two plates are moving away from each other

• Where two plates are sliding past each other

• Where two plates are stationary

What are transform plate boundaries?

• Where two plates slide alongside each other

• Where two plates are moving away from each other

• Where two plates are colliding

• Where two plates are stationary

What do plate boundaries produce/landforms?

• Volcanoes, mountains, and trenches

• Deserts, rivers, and lakes

• Forests, valleys, and hills

• Oceans, islands, and beaches

What is Seafloor Spreading?

• A result of convergent boundaries

• A result of divergent boundaries

• A result of transform boundaries

• A result of subduction zones

What happens to older oceanic crust during Seafloor Spreading?

• It moves towards the ridge

• It moves away from the ridge

• It stays in place

• It sinks into the mantle

What causes a convection current in the Earth's outer core?

• The cold temperature of the core

• The hot temperature of the core

• The movement of tectonic plates

• The rotation of the Earth

What happens to material as it warms in a convection current?

• It becomes more dense and sinks

• It becomes less dense and rises

• It stays the same density

• It cools down and solidifies

What is the difference between continental and oceanic crust?

• Continental crust is thinner and lighter

• Oceanic crust is thicker and lighter

• Continental crust is thicker but lighter

• Oceanic crust is thicker but heavier