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200

Equal amounts of light and darkness.  Occurs in the spring and fall.  

What is equinox?

200

One orbit around the sun or other celestial body.  (one year). 

What is a revolution?
200

The measure of an earthquake's strength.  Each level increase by 10.  

What is the Richter Scale?

200

One turn on an axis or a day.  

What is a rotation?

200

The max or min amount of light.  Occurs in summer and winter.  

What is solstice?

400

Examples of these include amount of light, temperature, density, productivity, salinity, and organisms living there.

What are characteristics that define the layers of the ocean?

400

Cloud type associated with thunderstorms. 

What are Cumulonimbus?

400

Also known as the twilight zone.

What is Mesopelagic? 

400

Thin wispy clouds associated with fair weather.

What are Cirrus?

400

Small puffy clouds associated with fair weather or light rain.  

What are Cumulus?

600

Thin clouds in lines associated with fair weather or light rain.  

What are Stratus?

600

When the water recedes from the shore due to the gravitational pull of the moon.  

What is low tide?

600

Thicker clouds associated with gentle rain and flooding.  

What are Nimbostratus?

600

When the Earth blocks the sun from reaching the moon during a full moon.  

What is a Lunar Eclipse?

600

Bigger type of tide when the Earth, moon and sun are in alignment.  

What is Spring Tide?

800

The phase of the moon following a full moon.  

What is a Waning Gibbous?

800

The climate/biome type that is continental, hot, and wet.  

What is the Rain Forrest? 

800

The layer of the atmosphere where weather occurs.

What is Troposphere?

800

The climate type that is continental, moderate temperature, and wet.

What is Fresh Water?

800

The layer of the atmosphere where the northern lights occur.  

What is the Thermosphere?

1000

Fo/Fe

What is magnification?

1000

weight/gravity

What is mass?

1000

The number located to the top right of the circle on a weather map when it is 200+ in in Hg.

What is high pressure?

1000
mass*gravity

What is weight?

1000

Pressure, temperature, cloud cover, wind speed and direction, fronts.  

What is the information that can be found on a weather map?

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