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Unit 3.5: Scientific Inquiry + Method DO NOT WRITE ON THIS TEST Scientific Method
1.
On which of the following would it be BEST for a scientist to base a hypothesis?
A. prior research and knowledge B.
a blind guess C.
a problem with a known answer D.
a question that cannot be tested
2.
A testable explanation for a question or problem is called:
A. an experiment
C. an observation B. a hypothesis
D. a verifiable law
3.
You suggest that the presence of water could accelerate the growth of bread mold. This is a(an) A.
Conclusion C. Experiment B.
Hypothesis D. Analysis
4.
If data from repeated experiments do not support the
hypothesis, what is the scientist’s best next step? A.
Declare the experiment unsuccessful B.
Revise the hypothesis and try the experiment again using
different procedures C.
Re‐write the data to make is seem as though the
experiment was successful D. Quit
5.
What is the logical step‐by‐step procedure used by scientists
called? A. descriptive research B.
pure science C. the scientific method D.
applied science
6.
Roncedrick made a data table so that it was easier to read his
results. Which step of the scientific method did Roncedrick complete? A.
Choose a problem
C. Experiment B.
Organize and analyze your data
D. Make a hypothesis
7.
What is the correct order of the scientific method? A.
Gather Information, state the question, formulate
hypothesis, analyze data, perform experiment B.
Perform experiment, analyze data, gather information, state
question, draw conclusions C.
State the question, draw conclusions, analyze data, perform
experiment, formulate hypothesis, gather information D.
State the question, gather information, formulate
hypothesis, perform experiment, analyze data, draw conclusions
8.
If I gave you a set of graphs and data tables to analyze, what part of the scientific method are you in?
A. Gather information B.
State the question C. Analyze data D.
Perform experiment
Independent/Dependent Variables
9.
Lashiea wants to see if drinking Gatorade will cause her to run faster. What is the independent variable in this experiment? A.
the Gatorade C. Lashiea B.
Lashiea’s running time
D. Lashiea’s Nikes
Use the following scenario to answer questions 10 ‐ 11 A study was done to see if drinking an energy drink before running a race affected runner’s speed. Group A of runners drank the energy drink and Group B of runners did not drink the energy drink before the race.
10. The independent variable is A.
the runner’s speed
C. drinking an energy drink B.
The runner’s shoes
D. running in a race
11.
The dependent variable is
A. the runner’s speed
C. drinking an energy drink B. The runner’s shoes
D. running in a race
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Controls and Constants Use the following scenario for questions 12 and 13 A medicine company tests the ability of a medication to enhance and improve the memory of humans. The company chooses 100 participants randomly, and places them into two groups of 50 each. Once a day and over a period of 6 months, all participants are given a pill. In one group, the pill contains the medication. In the other group, the pill contains no active ingredients. Once a week, both groups are given the same test to measure the memory of the participants.
12.
What is the independent variable in this experiment? A. the pill with the active ingredient
C. the placebo B. the test
D. the medicine company
13.
The difference between an experimental group and a control group is
that the ‐‐‐ A.
Experimental group has a known outcome
B.
Experimental group contains the variable being tested C.
Control group does not change and contains no variables being
tested D.
Control group is needed only when testing more than one variable
Graphing (making graphs, analyzing graphs) Use the following chart to answer question 14 Number of Pill Bugs
Sand Silt Clay Grass Trial 1
25 13 10 52 Trial 2 17
13 5 65 Trial 3 10 27
13 50 Trial 4 12 25 15
48 TOTAL 64 78 43
215 AVERAGE 16.0 19.5 10.7
53.7
14.
The chart above shows the results of an experiment designed to determine the most likely area in which to find pill bugs. Which graph is the BEST representation of these data?
A B
C.
D.
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Use the bar graph to answer question 15‐16:
15.
What conclusion should you draw from this graph? A.
Your car’s value increases (goes up) when it has more mileage. B.
Your car’s value decreases (goes down) when it has more mileage. C.
Your car’s value stays the same regardless of its mileage D.
None of the above.
16.
When your car has 40,000 miles on it, how much is it worth? A.
$ 2,000 C. $ 6,000 B.
$ 4,000 D. $8, 000
Use the chart to answer question 17: Number of Earthworms Frequency of Earthworms in Different Soils
Sand Mud Clay Sample 1 18
32 7 Sample 2 17 35
9 Sample 3 10 22
6 Sample 4 15 18 12 Totals
60 107 34
17.
Which of the following statements is BEST supported by the data shown above? A.
Earthworms have similar frequencies in these soil types B.
Earthworms were most often found in the mud habitat C.
Earthworms are suffocated by clay soils D.
Earthworms search for moisture in sand and muddy soil
18.
