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30 Cards in this Set
- Front
- Back
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Independent (manipulated) variable
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the variable being tested/changed.
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Control
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the set up or group in an experiment that is treated exactly like the experimental group except the independent variable is not applied, this gives you something to compare your experimental group to.
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Experimental Group
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the set up or group in an experiment that has the independent variable applied.
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Dependent (responding) variable
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the variable being measured
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Quantitative observation
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(quantity) observations containing measurements or use numbers and amounts (few, many).
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Qualitative observation
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(quality) observations that use the 5 senses to describe something (colors, smells, taste, sound, shape)
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Hypothesis
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a prediction that can be tested during an experiment.
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Inference
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an explanation or interpretation of an observation based on the observation and prior knowledge.
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Data
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information gathered through your observations during a scientific investigation. Can be recorded in data tables.
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Trial
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each set of repeated data sample: portion of the total number
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Validity
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accurate and reliable; repeating an experiment multiple times ensures that it is valid.
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Scientific investigation
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uses orderly steps to determine the effect of an independent variable during an experiment.
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Implement
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to put into practice or use.
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Evaluate
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to reflect; to consider the pros and cons of something.
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Identify
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to find or locate
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Design
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to create.
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data table
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organized arrangement of information displayed in labeled rows and columns
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row
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horizontal (left to right)
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column
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vertical (up and down)
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headings
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descriptive labels on rows and columns
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DRY
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dependent (responding) variables on Y-axis
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MIX
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independent (manipulated) variables on X-axis
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X-axis
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horizontal; independent variable
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Y-axis
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vertical; dependent variable
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Increments
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even spacing and numbering; graphs require proper increments on both axis
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key
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table of symbols shown on graph
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title
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label to describe information in graph
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bar graph
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used to compare quantities of different qualitative factors.
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line graph
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shows how quantitative data changes over time or relationships between variables.
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positive slope
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shows a positive relationship between two variables.
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