Continents
A large landmass on the Earth. (The Earth is divided into seven of them.)
What is a Continent?
Molten rock from a volcano that is ABOVE the surface of the earth.
What is lava?
A device that detects, measures, and records earthquakes.
What is a seismograph?
The gradual wearing down of a rock into smaller pieces by forces of weather like wind or water.
What is weathering?
A crack in the earth caused by the movement of plates. It is also where earthquakes typically occur.
What is a fault?
Molten rock still INSIDE the earth, BELOW the earth's surface.
What is magma?
These seismic waves are also known as primary waves and travel in a push pull motion much like a slinky.
What is a P-wave?
The movement of particles of soil, sand, and rock by wind or water to a new location.
What is erosion?
Scientists can use these to track the incredibly slow continental drift.
What are lasers and/or satellites?
The behavior of a volcano depends upon THIS thing that feeds it.
What is magma?
These seismic waves are also known as secondary waves and travel in a side to side motion much like a wriggling rope.
What is an S-wave?
This is a type of plate movement that forms mountains. (It is also when the graham crackers pushed against each other on top of the marshmallow fluff.)
What is Convergent?
This causes the movement of the tectonic plates of the earth's crust.
What is heat from the earth's core?
(or swirling liquid rock in the magma, or convection)
This is the reason for a volcanic eruption.
What is a buildup in pressure? (Also, gasses dissolved in magma)
A scale that rates earthquakes from 1-10 based on the power of the vibrations in the earth that occur when the earthquake happens.
What is the Richter Scale?
What are valleys?
A famous fault line in California where many earthquakes have happened.
What is the San Andreas fault?
This famous volcano erupted with enormous force in Washington state in 1980.
What is Mt. St. Helen's?
A scale that rates earthquakes from 1-10 based on the effect of the earthquake and the damage caused.
What is the Mercalli Scale?
This LAYER of the Earth records the history of the creation and destruction of mountains.
What is the crust?