Boundaries
Plate Tectonics
Plate Motions
Continental Drift Theory Evidence
Geologic Time
100

What type of boundary is it when crust destroyed?

Convergent Boundary

100

What is the top layer of the Earth?

What is the crust?

100
What natural disaster is caused at transform boundaries

What is earthquakes?

100

What is the theory that the continents were once connected?

What is Continental Drift Theory?

100

Remains of plants and animals from the past

What are fossils?

200

What type of boundary is it when new crust forms?

Divergent Boundary

200

Broken parts of lithosphere that carry continents and oceans

What are tectonic plates?

200
Supercontinent broken up by plate movement

What is Pangaea?

200

What was found on multiple continents that are separated by oceans?

What are fossils?

200

Geologic time known as the Age of Reptiles

What is the Mesozoic Era?

300

What type of boundary is it when two plates slide past each other?

Transform Boundary

300

What forms in the ocean at a divergent boundary

What is a mid-ocean ridge?

300

Amount of plate motion every year

What is 10 cm?

300

Who validated Continental Drift Theory by explaining HOW it happened?

Who is Harry Hess?

300

Age of rocks in comparison to other rocks

What is relative age?

400

Where volcanic arcs form

What is oceanic - continental converging boundary?

400

What causes plates to move?

Convection Currents

400

He believed plate tectonics moved and that is what formed continents and oceans.

Who is Alfred Wegener?

400

Evidence that continental coastlines fit together like puzzle pieces

What is continental fit?
400

What era is known for Earth being rock and volcanoes, with no life?

What is precambrian?
500

Where mountains form

What is continental - continental convergent boundary

500
When an oceanic plate and continental plate collide.
What causes subduction to occur?
500

What is formed by a divergent boundary between two continental plates?

What is rift valley? (or continental rift)

500

Marks on rocks caused by glaciers

What are striations?

500

Types of fossils that are important to date layers of rocks

What are index fossils?

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