Create an account
a front where warm air moves over cold air and brings drizzly rain and then are followed by warm and clear weather
forms when cold air moves under warm air which is less dense and pushes air up (produces thunderstorms heavy rain or snow
a boundary between air masses that don't move possibly causing rain for several days
Airmass over land/water
Is different due to the unequal heating of the earth. It takes water longer to heat.
the layer of the atmosphere between the stratosphere and the thermosphere and in which temperature decreases as altitude increases and meteor burn up
the layer of the atmosphere that contains the ozone layer; temperature increases as you go up
layer of electrically charged particles in the thermosphere that absorbs AM radio waves during the day and reflects them back at night (Northern lights)
the ratio of the amount of water in the air at a give temperature to the maximum amount it could hold at that temperature
the temperature at which the water vapor in the air becomes saturated and condensation begins
the degree of hotness or coldness of a body or environment (corresponding to its molecular activity)
Low Pressure system
Pressure system with counterclockwise and inward winds that brings cloudiness and stormy weather
The way Earth's rotation makes winds in the Northern Hemisphere curve to the right and winds in the Southern Hemisphere curve to the left.
How are the Northern/Southern hemisphere's different
They do the opposite: seasons, moons, hurricanes, winds, etc...
the liquid layer of the Earth's core that lies beneath the Mantle and surrounds the inner Core
100- 35 KM thick. Plastic, pliable, weak, hot, flows, more dense., the soft layer of the mantle on which the lithosphere floats
a crack in the earth's surface where two pieces of land have moved in different directions
individual sections of the lithosphere of the earth. They fit together in a way similar to a jigsaw puzzle, but are always moving very slowly, floating on the molten rock of the lower mantle.
The hypothesis that states that the continents once formed a single landmass, broke up, and drifted to their present locations.
What will earth look like 50 million years from now?
Pangea Ultima (land will slowly start to drift back together to make one big content)
the boundary between tectonic plates that are sliding past each other horizontally
sudden movements of Earth's crust followed by a series of shocks occurs near a fault zone
waves that travel horizontally, surface waves; last, slowest; bend & twist crust doing the most damage
A form of radiant energy in which heat is transferred by short, high-frequency waves.
when the winds of a tropical depression begin to blow even faster and thunderstorms move in spiral bands toward the area of lowest air pressure
twice-yearly time-each spring and fall-when the Sun is directly over the equator and the number of daylight and nighttime hours are equal worldwide
three reasons we have seasons
Tilt of the earth, revolution of earth, North pole always points in the same direction
a piece of rock or metal made up of material similar to that which formed the planets; mostly found in the asteroid belt between the orbits of Mars and Jupiter
the pressure exerted by the atmosphere as altitude increases pressure decreases and vice versa
an atmospheric phenomenon consisting of bands of light caused by charged solar particles known as "Northern Lights"
a heavy odorless colorless gas formed during respiration and by the decomposition of organic substances
the transfer of nitrogen from the atmosphere to the soil, to living organisms, and back to the atmosphere
the continuous movement of water between Earth's surface and the air, changing from liquid to gas to liquid
A natural cycle in which plants and Other procucers use carbon dioxide and produce oxygen, and Living things use oxygen and produce carbon dioxide.
Used to measure magnitude of earthquake. 1935 by Charles F. Richter - scale of 1.0 - 9.0 = size of seismic waves.
number at the top of the periodic table...Show how many protons and neutrons there are
A change that alters the form or appearance of a material but does not make the material into another substance.
a simple machine consisting of a wheel with a groove in which a rope can run to change the direction or point of application of a force applied to the rope
a sloping surface, such as a ramp, that reduces the amount of force required to do work
Coal, oil, natural gas, and other fuels that are ancient remains of plants and animals.
second on the electromagnetic spectrum going from lowest to highest frequency. can be felt as heat
Elements that are good conductors of heat and electric current, malleable, and shiny (left side)
Another type of electromagnetic wave produced by the sun that has shorter wavelenghts and higher frequencies than visible light.
Electromagnetic radiation having a very short wavelength; can penetrate substances such as skin and muscle.
Please allow access to your computer’s microphone to use Voice Recording.
Having trouble? Click here for help.
We can’t access your microphone!
Click the icon above to update your browser permissions and try again
Reload the page to try again!Reload
Press Cmd-0 to reset your zoom
Press Ctrl-0 to reset your zoom
It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.
Please upgrade Flash or install Chrome
to use Voice Recording.
For more help, see our troubleshooting page.
Your microphone is muted
For help fixing this issue, see this FAQ.
Star this term
You can study starred terms together