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10 Cards in this Set

  • Front
  • Back
Altitude
the angle of a celestial body above the observers horizon
Atmosphere
the envelope of gases that surround the Earth
Celestial Sphere
the imaginary sphere on which all objects in the sky seem to be located
Cyclic Change
any change that repeats itself in some predictable pattern
Density
the quantity of matter contained in a given amount of space; _________=mass/volume
Hydrosphere
all of the water that rests on and in the lithosphere
Inference
an interpretation of one or more observations
Lithosphere
the rigid crust and uppermost part of the mantle
Oblate Spheroid
a sphere that is slightly flattened at the poles; Earth is this
Polaris
the North Star, which is located almost directly above Earth's geographic North Pole