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Printed: November 15, 2022
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Scientific method Worksheet
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1. You are conducting an experiment. The following statement is your prediction: If a pond contains chemical
X, then there will be more deformed frogs compared to a pond that does not contain chemical X. Which
statement could be your hypothesis?
a. If a pond contains chemical X, then there will be less deformed frogs compared to a pond that does
not contain chemical X.
b. The number of deformed frogs in five ponds that are polluted with chemical X is lower than the
number of deformed frogs in five ponds without chemical X.
c. The number of deformed frogs in five ponds that are polluted with chemical X is higher than the
number of deformed frogs in five ponds without chemical X.
d. If a pond contains chemical X, then there will be the same number of deformed frogs compared to a
pond that does not contain chemical X.
2. Select all possible answers:
Which of the following are part of the scientific investigation process?
a.
b.
c.
d.
making observations
forming a hypothesis
communicating results
asking a question
3. Which process is used in a scientific investigation that generally follows a set of steps?
a. scientific law
b. scientific method
c. scientific theory
4. A hypothesis is based on scientific knowledge.
a. TRUE
b. FALSE
5. Experimental evidence that agrees with your prediction supports your hypothesis.
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a. TRUE
b. FALSE
6. You are conducting an experiment. The following statement is your hypothesis: The number of deformed
frogs in five ponds that are polluted with chemical X is higher than the number of deformed frogs in five
ponds without chemical X. Which statement could be your prediction?
a. If a pond contains chemical X, then there will be more deformed frogs compared to a pond that does
not contain chemical X.
b. The water in a pond of deformed frogs will have lower levels of chemical X.
c. The water in a pond of non-deformed frogs will have higher levels of chemical X.
d. If a pond contains chemical X, then there will be less deformed frogs compared to a pond that does
not contain chemical X.
7. Predictions tell what will happen under certain conditions.
a. TRUE
b. FALSE
8. You are conducting an experiment. The following statement is your hypothesis: The average number of
deformed frogs in ponds that are polluted is greater than the average number of deformed frogs in nonpolluted ponds.
Analyze the data below. What conclusion can you draw from this data?
Polluted Pond Number of Deformed Frogs Non-Polluted Pond Number of Deformed Frogs
1
20
1
23
2
23
2
25
3
25
3
30
4
26
4
16
5
21
5
20
Average:
22.8
Average:
23
a. The hypothesis is true, the polluted ponds have more deformed frogs than the non-polluted ponds.
b. The hypothesis is false, the polluted ponds have more deformed frogs than the non-polluted ponds.
c. The hypothesis is true, the average number of deformed frogs in the polluted ponds and non-polluted
ponds is almost the same.
d. The hypothesis is false, the average number of deformed frogs between polluted ponds and nonpolluted ponds is almost the same.
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9. A possible answer to a scientific question that can be tested is called what?
Answer:
10. Communicating your results allows others to test your hypothesis.
a. TRUE
b. FALSE
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Answer Keys
1. The number of deformed frogs in five ponds that are polluted with chemical X is higher than the number of
deformed frogs in five ponds without chemical X.
2. making observations , forming a hypothesis , communicating results , asking a question
3. scientific method
4. TRUE
5. TRUE
6. If a pond contains chemical X, then there will be more deformed frogs compared to a pond that does not
contain chemical X.
7. TRUE
8. The hypothesis is false, the average number of deformed frogs between polluted ponds and non-polluted
ponds is almost the same.
9. hypothesis , hypotheses
10. TRUE
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