This is the what the Earth's irregular, not-quite-circular shape is called.
What is an oblate spheroid?
100
These are faster than "S" waves, and are compressional. Their movement is similar to a slinky.
What are "P" waves?
100
This is the amount of salt dissolved in water (listed in ppt).
What is salinity?
100
This is the ozone layer.
What protects us from harmful UV layers and is located in the stratosphere?
100
This is the only planet that supports life and has water.
What is Earth?
200
This is used to locate any position on Earth using satellites and triangulation.
What is the Global Positioning System (GPS)?
200
This measures the intensity of an earthquake based on the type of damage that occurs from 1 to 12.
What is the Modified Mercalli Scale?
200
This is the end of continental crust, where a steep drop off occurs.
What is continental slope?
200
These are two types of air masses that both form over the ocean; one forms in the tropics and one forms at the poles.
What are maritime tropical and maritime polar?
200
This is a crater
What is a moon feature that forms from impacts of meteors?
300
This is the Vernal Equinox.
What is the sun striking directly on the equator; first day of Spring?
300
These are the features of a shield volcano.
What is very wide and broad, low viscosity, non-explosive due to gas content (Kilauea-Hawaii)
300
This is a bathyscaphe.
What is a mini-submarine that sinks to the ocean floor and has mobility?
300
This is the greenhouse effect.
What is when gasses allow sunlight to heat Earth and then those gasses hold onto that heat?
300
One of these models of the solar system is "Earth Centered" and one is "Sun Centered".
What are Geocentric and heliocentric models?
400
This is the degree of the Earth's axis.
What is 23.5 degrees?
400
These are the magnetic polarities that match on both sides of the mid-ocean ridges.
What are magnetic reversals?
400
This is Sonar.
What is a system that uses sound waves that travel to the bottom of the ocean floor and bounce off, returning to the receiver at the surface and measures the depth of the ocean?
400
This is the relationship between absorption and reflection.
What is absorption when light is taken into an object and turned into heat while absorption is when light energy bounces off an object which returns it to where it came from?
400
This is the nebula theory.
What is the theory that during the formation of the solar system that says that the solar system was once a nebula cloud of dust and gas, and that one day the nebula was pulled to the center by gravity and began to rotate.
500
These are the five steps (in order) of the scientific method.
What are state the problem, gather information, form a hypothesis, test the hypothesis, and state a conclusion?
500
This is the geologist who became a navy sub commander in WW2 and while being a commander, discovered mid-ocean ridges on the ocean floor.
Who is Harry Hess?
500
This describes the relationship between salinity and density.
What is Greater Salinity=Greater Density and Greater Temperature=Lesser Density?
500
These are the layers of the atmosphere in order.
What are the Troposphere, Stratosphere, Mesosphere, and Thermosphere?
500
This is the structure of the universe in order.
What are the universe, galaxy, star, planet, and moon?