Share 1st Six Weeks Environmental Science Review
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Mr. Bayliss needs your help: He needs to find the constant variables for his experiment. He is trying to determine what shampoo leaves his beard the softest. Which variable would be controlled?
Amount of Shampoo
He doesn't need any constant variables
Softness of Mr. Bayliss' beard
Type of Shampoo
not; without; lacking
a-; an-
anti-
de-
ana-
two; double
bio-
uni-
dipl(o)-
tri-
self
a-; an-
auto-
bio-
hetero-
Based upon the suffix, which of the following would NOT be an enzyme?
lactose
lactase
maltase
dehydrogenase
Describe the difference between accuracy and precision.
accuracy is closest to the real measure; precision is consistent
Which of the following is accurate but NOT precise? (Real measurement: 2.01 cm.)
1.87 cm.; 3.2 cm.; 2.5 cm.; 1.92 cm.; 4 cm.
1.95 cm.; 1.97 cm.; 1.94 cm.; 1.95 cm.; 1.96 cm.
2.01 cm.; 2.0 cm.; 2.5 cm; 3.0 cm; 1.95 cm.
2.01 cm.; 2.00 cm.; 2.02 cm.; 2.00 cm.; 2.01 cm.
Which of the following is precise but NOT accurate? (Real measurement: 2.01 cm.)
2.01 cm.; 2.00 cm.; 2.02 cm.; 2.00 cm.; 2.01 cm.
2.01 cm.; 2.0 cm.; 2.5 cm; 3.0 cm; 1.95 cm.
1.95 cm.; 1.97 cm.; 1.94 cm.; 1.95 cm.; 1.96 cm.
1.87 cm.; 3.2 cm.; 2.5 cm.; 1.92 cm.; 4 cm.
Which of the following is both accurate AND precise? (Real measurement: 2.01 cm.)
1.87 cm.; 3.2 cm.; 2.5 cm.; 1.92 cm.; 4 cm.
2.01 cm.; 2.0 cm.; 2.5 cm; 3.0 cm; 1.95 cm.
2.01 cm.; 2.00 cm.; 2.02 cm.; 2.00 cm.; 2.01 cm.
1.95 cm.; 1.97 cm.; 1.94 cm.; 1.95 cm.; 1.96 cm.
Which of the following is neither accurate NOR precise? (Real measurement: 2.01 cm.)
2.01 cm.; 2.00 cm.; 2.02 cm.; 2.00 cm.; 2.01 cm.
1.87 cm.; 3.2 cm.; 2.5 cm.; 1.92 cm.; 4 cm.
1.95 cm.; 1.97 cm.; 1.94 cm.; 1.95 cm.; 1.96 cm.
2.01 cm.; 2.0 cm.; 2.5 cm; 3.0 cm; 1.95 cm.
the standard by which the test results can be compared
control
experiment
dependent variable
independent variable
not influenced by personal feelings or opinions in considering and representing facts
injective
rejective
subjective
objective
the experimental factor that is manipulated; the variable whose effect is being studied
independent variable
controlled variable
dependent variable
a measure of how close a series of measurements are to one another
precision
a description of how close a measurement is to the true value of the quantity measured
accuracy
in an experiment, the group that is exposed to the treatment, that is, to one version of the independent variable
experimental group
