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9 Cards in this Set
- Front
- Back
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observation
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the process of obtaining information by using your senses
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hypothesis
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a theory or explanation that is based on observations and can be tested
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prediction
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-the expected outcome if a hypothesis is accurate
-a statement made in advance that expresses the results that will obtained from testing a hypothesis if the hypothesis is supported |
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pH
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a value used to express the acidity or alkalinity of a solution;
-a pH of 7 is neutral -a pH of less than 7 is acidic -a pH greater than 7 is basic |
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experiment
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a procedure that is carried out under controlled conditions to discover, demonstrate, or test a fact, theory, or general truth
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control group
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-in an experiment, a group that serves as a standard of comparison with another group
-the two groups are identical EXCEPT for one factor |
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independent variable
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-the factor that is deliberately (done on purpose)changed in an experiment
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dependent variable
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in an experiment, the variable that is changed or determined by manipulation of one or more factors
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theory
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-an explanation for some event that is based on observation, experimentation, and reasoning
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