Waves that move the quickest because they squeeze forward.
What are compressional waves?
100
The type of boundary most volcanoes are caused by.
What is divergent plate boundary?
100
The most common type of plate boundary that causes Earthquakes.
What is a transform boundary?
100
The well-accepted theory behind what the cause of moving plates.
What is the Theory of Plate Tectonics?
100
The density driven process of heating from below and cooling from above.
What is convection?
200
Waves that move slower because they move side to side.
What are shear waves?
200
Liquid rock still inside the volcano.
What is magma?
200
The fracture caused by rocks at stress.
What is a fault?
200
The name of the super-continent when all the plates used to be one large landmass.
What is Pangea?
200
When one plate slides UNDERNEATH another plate, ususally occuring between an oceanic plate and a continental plate.
What is subduction?
300
Inner Core, Outer Core, Mantle, ____________.
What is the crust?
300
Liquid rock outside of the volcano.
What is lava?
300
The most-common used scale to measure earthquakes.
What is the Richter Scale?
300
Long pieces of large rock, mostly created from converging plates that help to support the Theory of Plate Tectonics.
What are mountain chain belts?
300
At a divergent plate boundary, the ocean floor is moving apart.
What is sea floor spreading?
400
The layer of the Earth that is really solid, even though it appears liquid-like.
What is the mantle?
400
The cause behind the difference in a big, exploding volcano, or a small, slowly flowing volcano.
What is pressure/gas?
400
What waves carry with them as they are released from an earthquake.
What is energy?
400
Large sheets of ice that carry rock debris that further support the Theory of Plate Tectonics.
What are glaciers?
400
Dead animal and plant remains that support the Theory of Plate Tectonics.
What are fossils?
500
The process of bending/breaking waves because layers of the Earth are made of different materials.
What is refraction?
500
This famous chain of islands was made from a serious of hot spot volcanoes.
What is Hawaii?
500
The machine used to measure earthquake activity.
What is a seismograph?
500
A type of event that earthquakes, volcanoes, and even tsunamis fit into, where severe risk exists for all forms of life and that can change the landscape instantly.
What is a natural disaster?
500
A model that you can see and quite possibly touch.