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Scientific Method Flashcards | StudBud
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Scientific Method
Scientific Method
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#hypothesis #variables
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Answers
1
Which is the variable being observed or measured in an experiment?
Dependent variable
Control
Independent variable
2
A unifying explanation for a broad range of observations is a
hypothesis
controlled experiment
theory
prediction
3
Which of the following is not necessarily a characteristic of living things?
Complexity
Homeostasis
Metabolism
Reproduction
4
Scientists usually design experiments
All of the above
in order to develop new laboratory tools.
based on wild guesses.
with a good idea of the expected experimental results.
5
A hypothesis is
A proven statement
a definite answer to a given problem.
a testable possible explanation of an observation
A concluding statement
6
Scientific hypotheses are most often tested by the process of
analyzing data
communicating
experimenting
inferring
7
An educated guess is also referred to as?
Hypothesis
Theory
Observation
8
All organisms are composed of
Diatoms
Cells
None of the above
Cellulose
9
What is the SI unit for time
minutes
days
hours
seconds
10
Which of the following is a characteristic of all living things?
Photosynthesis
Movement
Ability to speak
Cellular Organization
11
A scientist noticed that in acidic pond water some salamanders developed with curved spines.
that is a control
That is a hypothesis
that is a theory
that is an observation
12
Living things
are composed of cells
need energy for life processes
have the ability to reproduce
all of the above
13
Scientists share their research results by
publishing in scientific journals
presenting at scientific meetings
both a and b
avoiding conflicts of interest
14
All living things maintain a balance within their cells and the environment through
homeostasis
evolution
growth
development
15
Homeostasis means
Keeping things the same
The same as evolution
Rapid Change
A change over long periods of time
16
The smallest units that can carry on all the functions of life are called
Species
Organelles
Molecules
Cells
17
A hypothesis that does not explain an observation
is known as an inaccurate forecast.
often predicts a different observation.
None of the above
is rejected
18
Scientists usually design experiments
with a good idea of the expected experimental results
all of the above
in order to develop new laboratory procedures
based on wild guesses
19
which is the manipulated variable in an experiment?
Control
Dependent variable
Independent variable
20
A microscope has an objective lens of 40x and an ocular lens of 10x has a magnification of
50x
400x
4000x
30x
21
The word theory used in a scientific sense means
an absolute scientific certainty.
a highly tested, generally accepted principle.
a guess made with very little knowledge to support it.
22
What is quantitative data?
a model
a color
numerical
a description
