Show:
unit 1: intro to earth science
unit 2: geology
unit 3: oceanography
unit 4: meteorology
unit 5: astronomy
100
what is geology?
study of the solid earth
100
what was the supercontinent called when all earth land was connected 200 million years ago?
pangaea
100
how much water is on the earth?
72% of the earths surface and 97% of earth's water is found in the oceans.
100
what percent of plants use nitrogen as nutrients?
78%
100
what does the universe have?
matter, energy, space, and time
200
what is a proposed explanation?
Hypothesis
200
what is panthalassa?
a superocean surrounding Pangaea 200 million years ago.
200
what is the largest and the deepest ocean?
the pacific ocean
200
which surface layer is very warm, and contains all weather and life on earth?
troposphere
200
what is the smallest planet that has no atmosphere?
mercury
300
what are the things in the experiment that change?
Variables
300
what are the magnetic reversals?
magnetic polarities that match on both sides of the mid-ocean ridges.
300
what is a metal SPHERE that is lowered on cables to the deep ocean floor?
bathysphere
300
what is the third layer from earth ( burns up meteoroids )
mesosphere
300
which planet is blue due to the methane gas and is the coldest?
uranus
400
what is a conclusion that is proven over and over again?
Law
400
what are plate tectonics?
oceanic and continental crust.
400
what is a continental shelf?
a flat extension of the continent found underwater
400
what is absorption?
light energy that is taken in by an object and turned into heat
400
what does geocentric mean?
earth centered
500
what is the imaginary line called that goes through the poles tilted at 23.5 degrees.
Axis
500
what is the rigid crust and upper mantle that sits on top of the asthenosphere?
Lithosphere
500
what does the volcanic islands have on the surfaces?
seamounts which rise above sea level
500
what is visible light?
a wave of energy that allows us to see
500
what is heliocentric mean?
sun centered