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22 Cards in this Set
- Front
- Back
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Controlled Variables
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Variables that are kept constant during the experiment (variables not being manipulated).
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Hypothesis
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Tentative explanation for an observation.
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Independent Variable
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What the investigator varies in the experiment (for example, time, pH, temperature, concentration).
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Procedure
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Process used to measure the dependent variable.
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Level of treatment
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Appropriate values to use for the independent variable.
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Control
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Treatment that eliminates the independent variable or sets it at a standard value.
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Dependent Variable
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What the investigator measures, counts, or records; what is being affected in the experiment.
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Replication
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Number of times the experiment is repeated.
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Prediction
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Statement of the expected results of an experiment based on the hypothesis.
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Allometric Growth (allometry)
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The phenomenon whereby parts of an organism grow at different rates, or the disproportionate growth of a part in relation to the entire organism.
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Isometric Growth
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When two body parts grow at the same rate.
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Variables that are kept constant during the experiment are called:
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Controlled variables or baseline.
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What is a hypothesis?
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A tentative explanation for an observation.
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What is an independent variable?
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The variable that is altered or changed in the experiment.
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What is the process used to measure the dependent variable called?
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Procedure.
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What is the level of treatment?
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The appropriate values to use for the independent variable.
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What sets the independent variable at a standard value?
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Control.
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What is measured, counted, and recorded in the experiment?
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Dependent variable.
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What is replication?
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The number of times the experiment is repeated.
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What is the statement of the expected results of an experiment based on the hypothesis called?
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The prediction.
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What are the steps for the scientific method?
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1. Observation
2. Hypothesis 3. Experiment 4. Theory 5. Law |
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When measuring the effects of sulfur dioxide on soybean reproduction, what would be the dependent variable and what would be the independent variable?
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Dependent variable - weight of pods, seeds per pod, # of pods.
Independent Variable - Sulfur Dioxide |
