Show:
Vocabulary
Structure of the Earth
Continental Drift Theory
Plate Tectonics
Miscellaneous
100
The thinnest layer of the Earth
What is the crust
100

There are ______________ main layers of the Earth.

What is four

100
Created the Continental Drift Theory
Who is Alfred Wegener
100
Earthquakes and Volcanoes are usually located in relation to these
What is a plate boundary
100
The Himalayan mountains are the result of a ___________________________ boundary.
What is convergent boundary
200

A number of rigid, but moving, pieces of Earth's surface

What is tectonic plates.

200
The thickest layer of the Earth
What is the mantle.
200
Evidence of matching animal fossils from two separate continents _____________________ and _____________________
What is Africa and South America
200
The mid-ocean ridge is an example of a ____________________ boundary and ___________________ occurs here where new ocean floor is formed.
What is divergent boundary; sea-floor spreading
200
Hot air or liquid is less ________________ than cool air or liquide
What is dense
300
The theory that all continents are fragments of Pangaea now drifting apart
What is the Continental Drift Theory
300

Plates float on top of the _______________________. (Lithosphere or Asthenosphere)

What is the asthenosphere

300
Evidence of tropical plants were found on this continent
What is Antarctica
300

Name the three types of plate boundaries

What is convergent, divergent, and transform?

300

_________________ are a result from the build up of stress at a transform plate boundary.

What is earthquakes

400

This process states that youngest rocks of ocean floor are at diverging boundaries, moving outward. This created Mid-Ocean Ridges.

What is seafloor spreading?

400

The rigid part of the Earth including the crust and the upper mantle (makes up the plates of the Earth) (Lithosphere or Asthenosphere)

What is the lithosphere

400

A supercontinent where all the continents once connected around 250 million years ago.

What is Pangea?

400

What causes tectonic plates to move?

What is convection currents?

400
The San Andreas Fault in California is an example of a ____________________ boundary.
What is a transform boundary
500

The hottest layer of the Earth. This layer is solid metal.

What is the inner core?

500

The Earth's crust is thinnest under the ______________ and thickest under the _____________.

(Use ocean and continent to fill in the blanks.)

What is thinnest under the ocean and thickest under the continents.

500
Continental Drift Theory was not accepted because it did not explain this
What is how the continents moved
500

What occurs at a Convergent boundary when one plate is more dense than the other (Oceanic and Continental)

What is subduction, volcanoes, and/or trench? 

500

This person used sonar to map the bottom of the ocean and discovered the mid-ocean ridge in the Atlantic Ocean. (Think of rap song with the students)

Who is Harry Hess!