science
who is a scientist who studies the structure of the earth?
geologist
what does MOHO stand for?
Mohorovicic discontinuity
what is the most common coal?
Bituminous coal
What are two types of rock caves?
lava and sea caves
any trembling or shaking of the earth's crust
earthquake
how does physical weathering work?
water breaks into rocks and cracks it?
what is an igneous rock
a rock that is formed when molten rock solidifies
what is the poorest type of coal?
Lignite coal
what is essential for all plant life
soil
melted rock
magma
the smallest fragments of tephra
volcanic ash
what is a depression also called?
crater
what does petroleum mean?
Rock oil
if rock bends without cracking
fold
fragments of rock
tephra
three types of eruptions
Plinian, Hawiian, and Strombolian
under water mountain ranges
mid-oceanic ridges
what are diamond pipes?
deposits that are found usually in deep tube like formations that appear to be clogged vents of extinct volcanoes
rock salt
halite
natural petroleum
crude oil
the individual substances that make up rocks
minerals
igneous rock definition
a rock that is formed whenmolten rock solidifies
"little stones"
lapilli
3 common types of volcanoes
composite, cinder cone, and shield volcanoes
define a dormant volcano
a volcano that has erupted before but is inactive