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