Show:
Tectonic Plates 1
Tectonic Plates 2
Tectonic Plates 3
Tectonic Plates 4
Tectonic Plates 5
100

In this type of boundary, plates are moving towards each other.

convergent plate boundaries

100

In this type of plate boundary, plates are moving apart

divergent plate boundaries

100

What is the thinnest part of the earth?

the crust

100

In this type of boundary, plates slide against each other

transform plate boundaries

100

What is the name of the theory that states the earth's crust is made of large sections moving over the mantle.

Plate Tectonics

200

Where do tectonic plates interact?

boundaries

200

What evidence supports the theory of continental drift? Name 4. 

Evidence that supported his theory and helped other scientists accept it pertained to rock formations, rock strata, coastline and shapes of continents, climate formations, and most importantly plant and animal fossil evidence.

200

What is sea floor spreading?

The formation of new areas of oceanic crust, which occurs through the upwelling of magma at midocean ridges and its subsequent outward movement on either side.


200

Compare a shield and composit volcanos. 

  • Composite cones are tall, cone shaped volcanoes that produce explosive eruptions.
  • Shield volcanoes form very large, gently sloped volcanoes with a wide base.
200

Why does oceanic crust subduct beneath continental crust?

Oceanic crust is more dense. 

300

What is the theory of continental drift and who created it?

The continental drift hypothesis was developed in the early part of the 20th century, mostly by Alfred Wegener. Wegener said that continents move around on Earth's surface and that they were once joined together as a single supercontinent.

300

Where do convection currents occurs?

the mantle

300

What causes the plates to move?

convection currents in the mantle

300

What oozes out of the earth when plates diverge?

magma or lava once it erupts. 

300

The biggest fault in California

the San Andreas Fault

400

Transform boundaries create this

earthquakes

400

What is shearing, compression, and tension?

Compression stress occurs when an object is squeezed or shortened, tension stress occurs when an object is stretched or lengthened, and shear stress occurs when an object is twisted or experiences forces that cause different parts of it to move in different directions or at different speeds.

400

cracks in the earth where plates slide against one another

a fault

400

When a plate slides under another

subduction

400

Name the two different types of crust

Oceanic and continental

500

A continental plate converging with a continental plate creates this

mountains

500

Which boundary does a reverse fault have?

Reverse faults often form along convergent plate boundaries.

500

What are the some of the largest mountains created be convergent plate boundaries?

the Himalayas

500
What do continental to continental plate boundaries create?
mountains
500

What do oceanic to continental convergent plate boundaries create?

Volcanoes on land and trenches in the ocean