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25 Cards in this Set

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nuclear reaction in which small nuclei join together releasing lot of energy; all stars produce energy this way
fusion
gamete-producing phase in a plant characterized by alternation of generations
gametophyte
very high energy wave (ten thousand to ten million electron volts); part of the electromagnetic spectrum
gamma rays
phase of matter in which the particles are moving fastest and are the furthest away from one another
gas
the unit of genetic information that contains the code for a a particular trait
gene
alteration of an organism's genetic material to eliminate undesirable traits or produce desirable ones
genetic engineering
a taxonomic category ranking below a family and above a species and genereally consitsing of a group of species exhibiting similar characteristics, used either alone or followed by a Latin adjective or epithet, to form the name of a species
genus
early model of the universe in which Earth is the center of the universe
geocentric model
energy from the inside of Earth
geothermal energy
a moving mass of ice formed over many years in which snowfall exceeds melting
glacier
cell or organ that produces a secretion for use elsewhere in the body or in a body cavity or for elimination from the body
gland
increase in the Earth's temperature due to pollution from the burning of fossil fuels
global warming
rate of ascending or descending change between values
gradient
device used to measure volum
graduated cylinder
unit of mass
gram
common, coarse-grained, light-colored, hard igenous rock consisting chiefly of quartz, orthoclase or microcline, and mica, used in monuments and for buliding
granite
segment of a circle respresenteing the shortest distance between two terrestrial points
great circle
natural force of attraction between any two massive bodies, which is directly proportional to the product of their masses and inversely proportional to the square of the distance between them
gravity
energy of position
gravitational potential energy
the trapping of infrared radiation by pollution in Earth' atmosphere
Greenhouse Effect
gases that trap solar energy
greenhouse gases
water beneath the Earth's surface, often between staruated soil and rock, that supplies wells and springs
groundwater
warm ocean current that originates form the Straits of Florida and travels in a gerneral NE direction up along the coast of Europe
Gulf Stream
area or type of environment in which an organism or ecological community normally lives
Habitat
a comet named after Edmund Halley, with a period of approzimately 76 years, the first one for which a return was successfully predicted, last appeared in 1986
Halley's Comet