volcanoes
earthquakes
minerals and rocks
tectonic plates
General questions
100
lava
What is magma that reaches the surface called?
100
magnitude
What Richter scales measure?
100
faults
What are places inside Earth's crust where the rock has broken and moved?
200
predict eruptions
What does studying the behavior of volcanoes help scientist to predict?
200
tsunami
What is a giant ocean wave that often occurs after a major earthquake?
200
near shores
Where do rivers deposit sand, gravel, and large rocks?
200
Nitrogen, Oxygen and a few other gases
What is the atmosphere made up of?
300
Mercalli scale
What expresses earthquake damage using Roman Numerals and descriptions?
300
fluorite
What is the Illinois state mineral?
300
deformation
What are the changes that result from bending, tilting, and breaking of the earth's crust called?
400
Ring of Fire
What is the belt of volcanoes that encircles the Pacific Ocean called?
400
fires, explosions, floods
What are dangers from earthquakes?
400
talc
What is the softest rock?
400
convergent plates
What are two tectonic plates in motion toward one another called?
400
Meridian
What are lines of longitude?
500
Mars
Where is the largest known volcano in the solar system, Olympus Mons found?
500
caldera
What is the depression that results when a cone collapses into an empty magma chamber called?
500
fracture
What is a break in a rock or mineral that is uneven and may have sharp pieces?
500
fissures
What does magma come to the surface of the earth through?
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