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WorksheetsCh. 1: Nature of Science Review
Total questions: 18
Worksheet time: 9mins
Name
Class
Date
1.
What factor is not changed in an experiment?
a)
temperature
b)
independent variable
c)
dependent variable
d)
control
2.
To __________ something means to draw a conclusion based on what you observe.
a)
infer
b)
theorize
c)
hypothesize
d)
guess
3.
An experiment is a specific test of a __________.
a)
variable
b)
control
c)
hypothesis
d)
theory
4.
Which of the following questions is legitimate for science to consider?
a)
Which type of orchid flower is most beautiful?
b)
How many seals can a killer whale consume per day?
c)
When is religion better than philosophy?
d)
Is competition good or evil?
5.
How does a scientist confirm data?
a)
by consulting with an expert in the field
b)
by making sure that technicians follow procedures properly
c)
by checking calculations for errors
d)
by observing that repeating the experiment yields similar results
6.
The test tubes in the image were left at room temperature for a week to see if algae would grow. Which of the following is the constant in the experiment?
a)
the amount of algae present
b)
)the temperature of the test tube's contents
c)
the amount of chlorine present
d)
the ratio of algae to chlorine
7.
Which of the following is the independent variable in the experiment shown in the image?
a)
amount of chlorine used
b)
volume of water used
c)
length of time of the experiment
d)
temperature of the test tubes
8.
Scientists conduct multiple trials of experiments...
a)
to ensure experiments always have the same results
b)
to make the results more reliable
c)
to save money
d)
because it's more fun...duh!
9.
A hypothesis must be:
a)
proven correct
b)
testable
c)
observed
d)
experimental
10.
The orchard sprayed with the chemical yields an average of 60 apples per tree, the other orchard yields an average of 40 apples per tree. Based on the data, the scientist could:
a)
report their data
b)
test the chemical on other plants
c)
determine that the chemical increases apple yield
d)
determine that the results were inconclusive
11.
Theories help scientists to:
a)
explain large bodies of data
b)
prove hypotheses
c)
determine what is true
d)
propose new ideas about how the world works
12.
If a theory is challenged by new evidence, which of the following could occur?
a)
the theory could be altered
b)
the theory is accepted, not the evidence
c)
the evidence is wrong
d)
a vote is taken on whether to accept the new evidence
13.
A scientist is studying whether cows will produce more milk when given an experimental drug. He gives 100 female cows the drug and then tests their milk production. Which of the following would be a good control group?
a)
100 male cows given the drug
b)
100 male cows not given the drug
c)
100 female cows not given the drug
d)
100 goats given the drug
14.
What is a hypothesis?
a)
guess or prediction
b)
testable explanation for an observed phenomenon
c)
another term for a theory
d)
The right answer
15.
Which of the following is important for a scientist to keep in mind when collecting data?
a)
Avoiding bias
b)
Recording all the data, even the really weird stuff
c)
Repeating the experiment multiple times
d)
All of these answers are correct.
16.
Which of the following is not an example of scientific honesty?
a)
Reporting when data was collected as the result of an equipment malfunction
b)
Discussing all sources of error
c)
Citing work of previous experiments that informed the current experiment
d)
Manipulating graphs or statistical analyses to fit a hypothesis
17.
Scientific knowledge is
a)
provable
b)
just a bunch of "theories"
c)
seeks the truth
d)
reliable but subject to interpretation
18.
Which of the following is true about science?
a)
Science is tentative
b)
Science is testable
c)
Some parts of science are unknowable
d)
All of these are corrct
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