definitions/questions for the science exam (:
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| constant | a factor that doesn't change
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| dependent variable | the factor whose value changes because of a change in the independant variable
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| independent variable | the fact or adjusted to a different value by the experimental to see what effect it will have on the dependent variable
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| hypothesis | a testable predictionused to see how something works or to solve a problems
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| manipulated variable | DV
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| responding variable | IV
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| volume | the amount of space occupied by an object
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| mass | a measurementof the amount of matter in an object
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| length | the distance between two points
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| control | standard for comparison that is often needed to draw a meaningful conclusion
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| density | the mass per unit volume of a material; describes how tightly packed a substance's molecules
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| metric conversions | Kilo, Hecto, Deca, Unit, Centi, Deci, Milli
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| solid | have a definite shape and volume
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| liquid | definite volume but no definite shape
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| gas | no definite volume or shape
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| plasma | exsists only at very high temperature
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| condensation | the change of a substance from a gas to a liquid, which usually takes place when a gas is cooled to or below its boiling point
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| evaporation (vaporization) | the gradual change of a substance from a liquid to a gas
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| fusion | solid to gas
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| solidification | liquid to solid
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| ionization | gas to plasma
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| recombination | plasma to gas
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| thermal expansion | almost all matter expands when heated and contracts when cooled
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| crystal | repeating geometric patterns
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| kinetic theory of matter | all matter is made up of tiny particles in constant motion
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| chemical change | the change of substances to different substances
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| physical change | a change in the size, shape, color, or state of matter
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| chemical properties | a characteristic of a substance that indicates whether it can undergo a specific chemical change
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| physical properties | any characteristic of a material that can be observed without changing the identity of the material itself
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Created by:
Carlyn Parr
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