Study cards for Chapter 1 in Science

Term Definition
Hypothesis A statement of what you think will happen during an investigation.
Observation Something you find out about an object or living thing by using your senses.
Experiment The use of scientific methods to test your hypothesis.
Variable Something that can change in a test.
Control Group The group in which all conditions are kept the game; the group that doesn't receive special treatment.
Procedure Step-by-step instructions.
Data Information from which a conclusion can be drawn and a prediction can be made.
Precision The ability to constantly repeat a measurement.
Accuracy The ability to make a measurement that is as close to the actual value as possible.
Inference A conclusion based on observations.
Evidence Observations that make you believe something is true.
Models Objects or ideas that represent other things.
Survey Questions that are answered by people.
Independent Variable The variable that is changed by the scientist.
Dependent Variable Changes when the independent variable changes.
Experimental Group The group that receives special treatment; test group.

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