Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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1.
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Which
scientific skill are you using when you see that the sky is cloudy? a. | making an
observation | b. | making an inference | c. | posing a
question | d. | drawing a conclusion | | |
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2.
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What
type of scientist would track an approaching storm? a. | astronomer | b. | oceanographer | c. | geologist | d. | meteorologist | | |
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3.
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A
controlled experiment is designed to test a. | a conclusion. | b. | a
hypothesis. | c. | data. | d. | a
measurement. | | |
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4.
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The
factor that a scientist changes during a controlled experiment is called the a. | dependent
variable. | b. | responding variable. | c. | initial
variable. | d. | manipulated variable. | | |
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5.
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A
chart showing the amount of rain each month in a region is an example of a
scientist's a. | variables. | b. | inferences. | c. | data. | d. | conclusions. | | |
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6.
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What
must be true of a conclusion to a controlled experiment? a. | A conclusion
must show that the data support the hypothesis. | b. | A conclusion
must show that the hypothesis was incorrect. | c. | A conclusion
must be reached for every experiment. | d. | A conclusion must relate the data to the
hypothesis. | | |
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7.
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A
scientific explanation that can be tested by observation or experiment is a(n) a. | inference. | b. | simulation. | c. | variable. | d. | hypothesis. | | |
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8.
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A
well-tested scientific concept that explains a wide range of observations is called
a a. | scientific
inquiry. | b. | scientific hypothesis. | c. | scientific
method. | d. | scientific theory. | | |
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9.
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Why
might symbols appear at the beginning of a lab or activity? a. | to indicate the
expected conclusion | b. | to provide the data | c. | to alert you to
needed precautions | d. | to give the necessary observations | | |
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10.
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Your
teacher hands out a copy of a laboratory experiment. What is the first thing you should do to conduct
the experiment safely? a. | Obtain and open any materials described in the
experiment. | b. | Review the lab and the safety procedures with your
teacher. | c. | Mix your materials with those of another group to save
time. | d. | Begin heating any materials that will need to be
hot. | | |
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Modified True/False
Indicate
whether the sentence or statement is true or false. If false, change the identified word or
phrase to make the sentence or statement true.
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11.
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A
model that imitates something in the real world is called a simulation.
_________________________
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12.
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Scientists often use controlled experiments to test observations.
_________________________
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13.
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Data are the factors that can change during an experiment.
_________________________
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14.
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Always follow your teacher's instructions on safety in the laboratory before
conducting an experiment. _________________________
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15.
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A
scientific hypothesis is a well-tested idea that explains a wide range of observations.
_________________________
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Completion
Complete each sentence or
statement.
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16.
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An
interpretation based on observations and prior knowledge is called
a(n) _________________________.
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17.
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A(n)
_________________________ tells whether or not the data of a controlled experiment support the
hypothesis.
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18.
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Around the world, scientists use a system of measurement known as the
_____________________________.
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Short Answer
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Colin's High
Tide Data | Sunday | Monday | Tuesday | Wednesday | Thursday | Friday | Saturday | 5:52 a.m. | 6:34
a.m. | 7:17 a.m. | 7:51 a.m. | 8:27
a.m. | 9:04 a.m. | 9:42 a.m. | 5:56 p.m. | 6:41
p.m. | 7:23 p.m. | 8:03 p.m. | 8:44
p.m. | 9:25 p.m. | 10:08 p.m. | | | | | | | |
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19.
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Colin
lives near the ocean. There, tides occur twice a day as the ocean waters rise and fall along the
shore. The time when the water is highest is called high tide. Colin observed the high tide each day
for a week. Then he recorded the time of the high tide in a data table. What pattern can you detect
in Colin's data?
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20.
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Colin
lives near the ocean. There, tides occur twice a day as the ocean waters rise and fall along the
shore. The time when the tide is highest is called high tide. Colin observed the high tide each day
for a week. Then he recorded the time of the high tide in a data table. What can you predict about
the times of the high tides on the Sunday after the last day in the table?
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Essay (Extra Credit - 5 points each)
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21.
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Is an
experiment a failure if the data do not support the hypothesis? Explain your answer.
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22.
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What
is the difference between an observation and an inference?
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