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water in gas form
water vapor
the ozone protects us from
UV rays.
cleavage is
The tendency of a mineral to break along certain planes to make smooth surfaces
equinox
is when the Sun is directly above the equator
what can S-waves travel though
S-waves travel though only solids
condensation is when
water vapor changes from a gas to a liquid.
Above the troposphere
stratosphere
The way a mineral breaks when it is not broken along a cleavage plane
fracture
solstice
When the position of the Sun is closest to one of the poles
P-waves can travel though
solids and liquids
transpiration
when water vapor is released from plants
Lights in the poles
aurora
The ability of a mineral to resist scratching
hardness
Model proposed by Copernicus that put the Sun at the center of the universe
heliocentric model
the study of seismic waves
seismology
A mouth is
Where a stream enters a larger body of water such as a lake or an ocean
the outermost layer of the atmosphere
exosphere
Molten rock that has reached Earth's surface
lava
Model used by the ancient Greeks that puts the Earth at the center of the universe
geocentric model
The rocky outer layer of the Earth's surface
crust
residence time is
the time a substance remains in a reservoir
An ionized layer within the thermosphere
ionosphere
vein
Minerals that cooled from a fluid and filled cracks in a rock
the tilt of the world on its axis is
23.5 degrees
an extinct volcano is
A volcano that has not erupted in recorded history and may not erupt again