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TEAS 7 SCIENTIFIC REASONING EXAM QUESTIONS WITH COMPLETE ANSWERS
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TEAS 7 SCIENTIFIC REASONING EXAM QUESTIONS WITH COMPLETE ANSWERS
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TEAS 7 SCIENTIFIC REASONING EXAMQUESTIONS WITH COMPLETE
ANSWERS
Meter - answer-to measure length
Liter - answer-measures volume
Kilogram/gram - answer-measures mass
Ampere - answer-measures electric current
Kelvin - answer-si unit for temperature
Candela - answer-measures luminous intensity
Mole - answer-the measure of the amount of substance in molecular level
Graduated cylinder - answer-instrument used to measure volume of a liquid
Burette - answer-used for dispensing liquids especially during titrations
Beakers and flasks - answer-used to contain liquids mixing
Pipette - answer-a glass or transparent plastic tube used to accurately measure small
amounts of liquid
Meniscus - answer-the curved upper surface of a liquid in a tube
Repipette - answer-a hand-operated pump that dispenses solutions
Triple beam balance - answer-instrument used to measure mass
A valid experiment must be _________ - answer-measurable
First step of the scientific method - answer-state the problem/ask a question
Once the problem has been defined as necessary to form a - answer-hypothesis
The key to making the best possible use of an experiment is - answer-observation
Observations may be - answer-both quantitative and qualitative
, After observations , these trends, the scientist will draw - answer-a conclusión or
generalization about the results.
If the conclusion support the original hypothesis than the experiment - answer-is
complete and the scientist will publish his conclusions to allow others to test them by
repeating the experiment.
If the conclusion or generalizations do not support the hypothesis the results should be
used - answer-to develop a new hypothesis which can then be verified by anuel are we
designed experiment.
The experiment should be a _________ procedure describing the materials needed and
the set-up of the experiment, as well as observations and measurements that will be
made - answer-step by step methods
An experiment should be controlled so that all of the conditions except the ones being
manipulated are held constant - answer-this helps ensure that the results are not
skewed by unintended consequences of shifting conditions.
Control group - answer-in an experiment, the group that is not exposed to the treatment;
contrasts with the experimental group and serves as a comparison for evaluating the
effect of the treatment. (normal)
Positive control group - answer-group where an effect is expected
Negative control group - answer-group where there should not be an effect
Independent variable - answer-the experimental factor that is manipulated; the variable
whose effect is being studied.
Dependent variable - answer-the outcome factor; the variable that may change in
response to manipulations of the independent variable.
Hecto - answer-10^2
Deka - answer-10^1
Kilo - answer-10^3
Mega - answer-10^6
Giga - answer-10^9
Tetra - answer-10^12
Condensation - answer-gas to liquid
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