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Chapter 1.3
Chapter 1.3 vocab
Term | Definition |
---|---|
scientific method | the series of steps followed to solve problems, including collecting data, formulating a hypothesis, and stating conclusions. |
observation | the process of obtaining information by using the senses; the information obtained by using the senses |
hypothesis | in science, an idea or explanation that is based on observations and that can be tested |
prediction | a statement made in advance that expresses the results that will be obtained from testing a hypothesis if the hypothesis is supported; the expected outcome if a hypothesis is accurate |
experiment | a procedure that is carried out under controlled conditions to discover, demonstrate, or test a fact, theory, or general truth |
control group | in an experiment, a group that serves as a standard of comparison with another group to which the control group is identical except for one factor |
experimental group | in an experiment, a group that is identical to a control group except for one factor and that is compared with the control group |
independent variable | in an experiment, the factor that is deliberately manipulated, also called manipulated variable |
dependent variable | in an experiment, the factor that changed as a result of manipulation of one or more other factors; also called a responding variable |
theory | an explanation for some phenomenon that is based on observation, and reasoning, that is supported by a large quantity of evidence; and that does not conflict with any existing experimental results or observations. |
peer review | the process in which experts in a given field examine the results and conclusions of a scientist's study before that study is accepted for review |