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PSSA Science Words November
These words are for PSSA review in Science
11
Science
8th Grade
11/09/2007

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Term

NATURAL SELECTION

Definition
THE PROCESS WHERE BY SOME ORGANISMS IN A SPECIES HAVE CERTAIN INHERITED VARIATIONS THAT GIVE THEM AN ADVANTAGE
Term
METAMORPHIC
Definition
ROCKS CHANGED BY TEMPERATURE AND PRESSURE WITHIN THE CRUST OF THE EARTH
Term
CLIMATE
Definition
THE USUAL PATTERN OF WEATHER IN A PARTICULAR AREA
Term
GROWTH
Definition
INCREASE IN SIZE OR CHANGE IN SHAPE DUE TO CELLULAR PROCESS
Term
PRECIPITATION
Definition
WATER FROM THE ATMOSPHERE THAT FALLS TO THE GROUND
Term
TEMPERATURE
Definition
AMOUNT OF ENERGY OR HOTTNESS OR COLDNESS IN MATTER
Term
METEOR
Definition
BRIGHT FLASH OF LIGHT SEEN FROM SPACE WHEN A METEROID BURNS UP IN THE ATMOSPHERE
Term
MECHANICAL ADVANTAGE
Definition
THE NUMBER OF TIMES A MACHINE MULTIPLES THE EFFORT FORCE
Term
GRAVITY
Definition
THE FORCE OF ATTRACTION BETWEEN TWO MASSES
Term
ECLIPSE
Definition
THE BLOCKING OF LIGHT FROM THE SUN WHEN THE EARTH COMES BETWEEN THE SUN AND MOON OR THE MOON BETWEEN THE SUN AND EARTH
Term
CARRYING CAPACITY
Definition
THE NUMBER OF ORGANISMS AN ECOSYSTEM CAN SUPORT WITHOUT CHANGE TO IT
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