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science vocab. words

FCAT science vocabulary words

WordDefinition
Chemical Change a reaction or a change in a substance produced by chemical means that result in producing a different chemical
Control Group the group of subjects in an experiment that DOES NOT receive the independent variable, serves as a means for comparison
Control
Density concentration of matter of an object; number of individuals in the same species that live in a given area; the mass per unit volume of a substance in a given area
Dependent Variable factor being measured or observed in an experiment
Experiment a procedure that is carried out and repeated under controlled conditions in order to discover, demonstrate, or test a hypothesis; includes all components of the scientific method
Experimental Group the group of subjects in an experiment that DOES receive the independent variable, serves as a means for comparison
Hypothesis an idea that can be tested by experiment or observation
Independent Variable the factor that is changed in an experiment in order to study changes in the dependent variable
Investigation a procedure that is carried out in order to observe a response caused by a stimulus; not a complete experiment
Mass the amount of matter an object contains
Matter a solid, liquid, or gas that processes inertia and is capable of occupying space
Physical Change a reaction; a change in matter from one form to another, without forming new substances
Scientific Method a plan of inquiry that uses science process skills as a tool to gather, organize, analyze, and communicate information
Variable the event, condition, or factor that can be changed or controlled in order to study or test a hypothesis in a scientific experiment
Volume a measure of the amount of space an object takes up
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