a group that does not undergo change and is used compare against the experimented groups sentence: The control group was the only group that we didn't put the special soil on.
a variable whose variation does not depend on that of another. sentence: In mathematical modeling, statistical modeling and experimental sciences, the values of dependent variables depend on the values of independent variables.
a variable that changes in response to the independent variable sentence: A dependent variable is what you measure in the experiment and what is affected during the experiment.
an educated guess made at the beginning of the scientific process sentence: My hypothesis was that the water would turn black if we put black food coloring in it.
facts and statistics collected together for reference or analysis sentence: The data we collected showed a pattern.
a statement backed up by evidence and approved by others sentence: One scientific law is Newton's Law.
detailed examination of the elements or structure of something sentence: Qualitative analysis determines what substances are present in a compound.
the ending decision that explains the problem and solves it sentence: I came to a conclusion that my mass was the same no matter where I went.
the action or process of observing something or someone carefully or in order to gain information sentence: I made an observation that the algae were green.
an idea, not approved by all, but backed up by evidence sentence: My little brother's theory was that Batman is real.
a test where the person conducting the test only changes one variable at a time in order sentence: In a controlled experiment, an independent variable is the only factor that is allowed to be adjusted, with the dependent variable as the factor that the independent variable will affect.
quantities that a scientist wants to remain constant sentence: Controlled variables are variables that an experimenter keeps constant to prevent confounding with the independent variable.
the group in an experiment that receives the variable being tested sentence: We tested the Miracle Grow on the experimental group of plants.
the series of steps one must complete to find an explanation of unknown variables in an experiment sentence: I used the Scientific Method to figure out my scientific question.
data that can be observed with our senses: sight, smell, touch, taste, and hearing Sentence: I made a qualitative observation that the jello was jiggly.
made with numbers and are measurable sentence: I made a ? that the mass of the jello was 1.13 g/cm3
the quality, condition, or fact of being exact and accurate sentence: The deal was planned and executed with military ??.
the quality or state of being correct or precise sentence: We have confidence in the ? of the statistics.
the space something takes up sentence: The sewer could not cope with the ? of rainwater.
a measure of how much stuff an object has in a unit volume sentence: In the surgery there was a reduction in bone density.
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