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Vocabulary
Structure of the Earth
Continental Drift Theory
Plate Tectonics
100

Traces or remains of organisms that lived long ago

What are fossils

100

Where new ocean floor is formed. Warmer and less dense rock is found here.

What is mid-ocean ridges

100

Energy from Earth's (interior/exterior) drives plate motion

What is Earth's interior

100
Earthquakes and Volcanoes are usually located in relation to these
What is a plate boundary
200

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

What is tectonic plates.

200

Where cool, dense ocean floors sink into Earth's interior and are recycled

What is deep-ocean trenches

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
300

The theory that describes Earth's outer layer being broken up into moving plates.

What is the the theory of plate tectonics
300

Where volcanoes, mid-ocean ridges, and ocean basins may form

What is plates moving away from each other

300

Where hills, mountains, and off-set streams may develop. Eruptions do not occur here.

What is plates moving past each other

300

Ms. Davey's favorite Thanksgiving pie

What is apple pie

400

States that youngest rocks of ocean floor are at mid-ocean ridges, moving outward

What is sea-floor spreading

400

Where volcanoes, mountain chains and deep-ocean trenches may form

What is plates moving toward each other

400
Pangaea existed this many millions of years ago
What is around 250 million years ago
400

This is the cycle that causes the tectonic plates to move

What is convection currents

500

The edge of a continent that is covered with water

What is continental shelf

500
The Earth's crust is thinnest under the _____________________ and thickest under the _____________________.
What is thinnest under the ocean and thickest under the continents.
500

The number of turkeys prepared for Thanksgiving each year

What is about 46 million (40-50)

500
Name four of the major plates
What is any of the following North American plate, South American plate, Eurasian Plate, Indoaustralia plate, African plate, Antarctica plate