Vocabulary
Structure of the Earth
Plate Boundaries
Plate Tectonics
Miscellaneous
100

This happens when earthquake waves pass from crust to mantle.

What is change direction?

100
There are ______________ main layers of the Earth.
What is four
100

The reason Iceland has so many volcanoes.

What is Iceland is on a boundary between 2 different plates?

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 reason land masses have shifted over time.

What is convection currents moving crustal plates?

200

What is created when magma bursts from the mantle and goes through a weakness in the Earth's crust.

What is a volcano?

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

This describes the process where mountains are create at convergent boundaries.

What is folding?

300
Plates float on top of the _______________________.
What is the asthenosphere
300

The boundary that causes seafloor spreading.

What is divergent (ocean to ocean)?

300

The place where most of the Earth's volcanoes are.

What is the Ring of Fire?

300
_________________ are a result from the build up of stress at a plate boundary.
What is earthquakes
400

This occurs at divergent plates when they are oceanic to oceanic.

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)
What is the lithosphere
400

The place where most geological events on Earth occur.

What is at plate boundaries?

400
This is the mechanism (what causes) the plates to move
What is convection cycles in the mantle
400
The San Andreas Fault in California is an example of a ____________________ boundary.
What is a transform boundary
500

The 2 types of earthquake waves.

What is P-waves and S-waves?


Both can travel through liquid.

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

Double Jeopardy

Name 2 of the major plates


What is any of the following North American plate, South American plate, Eurasian Plate, Indoaustralia plate, African plate, Antarctica plate

500

Double Jeopardy

The two types of convergent boundaries

What is subduction (where volcanoes often occur) and collision (where mountains are usually formed)?

500

This is a fracture between 2 types of rocks.

What is a fault?

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