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MHMS Weather LS2

MHMS Weather Watch Learning Set 2

TermDefinition
thermal energy the energy of motion of the particles of matter in a substance.
heat the transfer of thermal energy from a warmer substance to a cooler one.
conduction the transfer of heat through direct contact.
convection the transfer of heat in a fluid (gas or liquid) by currents of warm, rising fluid and cool sinking fluid.
radiation the transfer of energy by electromagnetic waves.
electromagnetic waves a form of energy, such as light, ultraviolet rays, or infrared rays, that can travel through a vacuum.
solar energy energy given off by the Sun that travels through space as electromagnetic waves and strikes Earth.
latitude the measure of distance north or south of the Equator.
Equator an imaginary line around the middle of Earth that is an equal distance from the North and South Poles.
axis a line through the center of a body, around which the body rotates, or spins; Earth’s imaginary axis passes through the North and South Poles.
rotation one complete turn of a planet around its axis.
revolution the orbital motion of one body in space around another. Earth revolves around the Sun.
ellipse a shape that is a squashed or flattened circle.
summer solstice the day with the greatest number of daylight hours.
winter solstice the day with the fewest number of daylight hours.
equinox one of two days in the year when the number of daylight hours equals the number of nighttime hours everywhere on Earth.
specific heat capacity The amount of heat energy required to raise the temperature of 1 gram of a substance by 1º Celsius.
Created by: bonniehodder
 

 



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