Term
Active Earth
What are the layers of the Earth? How much does each layer take up? |
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Definition
Cust- .7%
Mantle- 15.7%
Outter Core- 82.0%
Inner Core- 1.6%
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Term
Active Earth
What is a convection cycle? |
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Definition
carrying heat from the interior of the Earth to the surface, hot magma rises to the top and when it cools it goes back down.
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Term
Active Earth
What is the theory of continental drift? |
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Definition
| movement of the Earth's continents relative to each other by appearing to drift across the ocean |
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Term
Active Earth
What are the boundaries and what do they do? |
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Definition
convergant- plates move together
divergant- plates move away from eachother
transform fault- plates rub against eachother |
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Term
Active Earth
What is the elastic reboud theory?
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Definition
| stress builds up along the fault lines, the rock eventually snaps and send outs waves to form an earthquake. The ground shakes due to S waves. |
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Term
Active Earth
What are P, S, and Surface waves? |
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Definition
P waves- compressional waves
S waves- snake like movements
Surface waves- |
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Term
Active Earth
What does a seismogram measure? |
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Definition
| record of the ground motion at a measuring station as a function of time |
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Term
Violent Weather
What are the layers and pauses of the atmosphere? |
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Definition
Troposphere,
Tropopause,
Stratosphere,
Stratopause,
Mesosphere,
Mesopause,
Thermosphere,
Thermopause,
Ionosphere |
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Term
Violent Weather
What is the ozone layer? |
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Definition
| it protects us from the sun's harmful UV rays. |
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Term
Violent Weather
What are the steps of the water cycle? What are the forms of precipitation?
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Definition
1. Evaporation
2. Transpiration
3. Condensation
4. Precipitation
5. Run off
6. Infiltration
Forms of precipitation: rain, drizzle,hail, sleet, snow
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Term
Violent Weather
What is humidity? |
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Definition
amount of water vapor in the air
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Term
Violent Weather
What do isobars and isotherns measure? |
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Definition
| Isobars are contoured lines of constant atmospheric pressure and isotherms are contoured lines of constant temperature. |
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Term
Violent Weather
what is a front? what two factors make up a front? What are the two front that occur? |
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Definition
A warm front is the leading edge of a warm sector of low-pressure system.
A cold front is the boundary of an advancing mass of cold air. |
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Term
Violent Weather
what is climate? |
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Definition
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Term
Violent Weather
what are the three main climate zones of the world? |
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Definition
| Tropical, Temperate and Polar |
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Term
Violent Weather
what are the different biomes? |
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Definition
desert
forest
arctic tundra
grassland
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Term
Violent Weather
what are the different thunderstorms? |
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Definition
single-cell: just a thunder storm
multi-cell:tornado,storm, hail, etc.
super cell: hurricane, storm etc. |
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Term
Violent Weather
How is lightning and thunder formed? |
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Definition
Lightning-- It is a natural discharge of the static electricity built up in storm clouds. static electrical discharges such as lightning are caused by separation of charges into positive and negative ions.
Thunder-- cause by rapid expansions of the air surrounding the path of a lightning bolt, when it breaks it makes the rubmbling sound called thunder.
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Term
Violent Weather
what does a fujita scale measure? |
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Definition
| measures the damage, insensity and strengths of a tornado |
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Term
Violent Weather
what is a tornado alley? where are they located? |
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Definition
| where most tornadoes occur. they are located in Oklahoma, Kansas, Nebraska, Texas, Iowa |
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Term
Energy
What is thermal energy? |
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Definition
| energy you have with or from heat |
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Term
Energy
what is coal, oil, and natural gas? |
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Definition
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Term
Energy
what is alternative energy? |
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Definition
energy you can use and can be used again, they are always there:
Hydroelectric,
Solar,
Wind,
Geothermal,
Tidal,
Biomass |
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Term
Energy
what is renewable energy? |
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Definition
energy that can be renewed and used again
for example: alternative energy |
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Term
Energy
what is nonrenewable energy? |
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Definition
energy that cannot be used again or renewed.
for example: fossil fuels. |
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Term
Energy
what is a conductor? |
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Definition
| A material or an object that conducts heat, electricity, light, or sound. |
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Term
Energy
what is an insulator? |
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Definition
| A material or an object that does not easily allow heat, electricity, light, or sound to pass through it |
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Term
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Definition
| The SI unit of electromotive force, the difference of potential that would carry one ampere of current against one ohm resistance. |
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Term
Energy
what is a series circuit? |
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Definition
| a circuit that has a battery, light, a switch, and wire but only has one path way |
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Term
Energy
What is a parallel circuit? |
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Definition
| a circuit that has a battery, light, switch, and wires but has morethat one path way |
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