Air and Atmosphere
Water and Hydrosphere
Earth and Lithosphere
Weather
Waves and Sound
100
The mass of water vapor contained in a certain volume of air.
What absolute humidity?
100

The process by which water is continuously exchanged between earth's various water sources.

What is the hydrologic cycle?

100

The theory that the continents and all things in the lithosphere are moving around on islands of rock.

What is plate tectonics?

100
The boundary between two air masses.
What is a weather front?
100
A wave with a direction of propagation that is parallel to its direction of oscillation.
What is a longitudinal wave?
200
Light that is energetic enough to damage or kill living tissue.
What is ultraviolet light?
200
Opposite charges within the same structure.
What is polarity?
200
The Appalachian Mountains in the U.S. and the Alps in Europe are examples of this kind of mountain.
What are folded mountains?
200
Two ways in which water can leave the atmosphere and make it back to earth, which are not considered forms of precipitation.
What is dew and frost?
200
How frequency and wavelength are related.
What is inverse?
300
The sphere which is characterized by a steady drop in temperature as altitude increases.
What is the troposphere?
300
A bond formed between molecules.
What a hydrogen bond?
300
The effect of pressure that is great enough to counteract the effect of high temperature so that atoms get pushed closer together resulting in a solid substance.
What is pressure freezing?
300
Factors that influence weather.
What are thermal energy, uneven distribution of thermal energy, and water vapor in the atmosphere?
300
Two factors which determine the pitch of a sound.
What are wavelength and frequency?
400
This is what happens when an ozone molecule absorbs ultraviolet light.
What is, "It is destroyed"?
400
A property of water that allows it to travel up from the roots of plants.
What is water cohesion?
400
Two theories that try to explain where the electrical current in the earth's core originates.
What is the dynamo theory and the rapid-decay theory?
400
The point at which the earth is farthest from the sun.
What is aphelion?
400
Sound waves with frequencies below 20 Hz.
What are infrasonic waves?
500
The composition of dry air.
What is 21% oxygen, 78% nitrogen, and 1% other gases.
500
The cooling of a gas that happens when the gas expands with no way of getting more energy.
What is adiabatic cooling?
500
A theory that rocks bend in response to forces acting on them to push them in different directions.
What is the elastic rebound theory?
500
The way in which the rotation of the earth bends the path of winds, sea currents, and objects that fly through different latitudes.
Who is the Coriolis effect?
500
The speed of sound in air.
What is v = (331.5 + 0.06 x T)(m/sec)
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