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
of the following phrases best describes science? a. | a list of facts about the world around
you | b. | a process of
learning about the natural world | c. | doing experiments | d. | drawing
conclusions | | |
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2.
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Which
skill are you using when you use your five senses to gather information? a. | posing
questions | b. | observing | c. | developing
hypotheses | d. | designing experiments | | |
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3.
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Facts, figures, and other evidence learned through observation are
called a. | variables. | b. | experiments. | c. | questions. | d. | data. | | |
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4.
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A
hypothesis is a. | a possible
explanation for observations. | b. | a factor that is changed during an
experiment. | c. | a conclusion you draw once you have done an
experiment. | d. | the use of one or more senses to gather
information. | | |
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5.
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What
characteristic must be true of a good hypothesis? a. | It must be correct. | b. | It must have
been observed many times. | c. | It must involve quantitative data. | d. | It must be
testable by observation or experiment. | | |
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6.
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In an
experiment, the variable that changes as a result of changes that the scientist makes is
the a. | hypothesis. | b. | controlled variable. | c. | dependent
variable. | d. | inferred variable. | | |
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7.
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In a
controlled experiment, a scientist is studying how long it takes parachutes of different sizes to
fall to the ground. What is the independent variable? a. | the size of the
parachute | b. | the height from which the parachute is
dropped | c. | the size of the object carried by the
parachute | d. | the time it takes for the parachute to
drop | | |
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8.
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You
want to know if the temperature of water affects how quickly a cube of sugar will dissolve, or seem
to disappear, into the water. In a controlled experiment, what would be the dependent
variable? a. | the size of the
sugar cube | b. | the amount of water | c. | the temperature
of the water | d. | the time it takes for the sugar cube to dissolve in the
water | | |
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9.
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An
example of a qualitative observation is a. | 25°C. | b. | 5
km/h. | c. | big | d. | 2.7 g. | | |
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10.
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A
statement that describes what scientists expect to happen every time under a given set of conditions
is called a scientific a. | observation. | b. | hypothesis. | c. | inference. | d. | law. | | |
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11.
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Which
sentence best describes a scientific theory? a. | It can never change. | b. | It can change
every time it is tested. | c. | It can be proven conclusively. | d. | It is
well-tested and explains a wide range of observations. | | |
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12.
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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. | Read every step of the procedure to make sure you understand
it. | b. | Begin heating
any materials that will need to be hot. | c. | Mix your materials with those of another group to save
time. | d. | Obtain and open any chemicals described in the
experiment. | | |
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13.
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Which
safety measure should you take for every single laboratory experiment? a. | Use
heat-resistant gloves. | b. | Follow your teacher’s
instructions. | c. | Open all classroom windows. | d. | Wear a lab
apron. | | |
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14.
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The
measurement of how much matter an object contains is its a. | volume. | b. | weight. | c. | mass. | d. | density. | | |
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15.
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The
last step in the scientific method is a. | hypothesis | b. | question | c. | results | d. | conclusion | | |
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16.
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Matter is: a. | the amount of stuff packed in an
object | b. | the amount of mass in a given space | c. | what I get when
I can't answer a question | d. | anything that has mass and takes up
space | | |
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17.
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Which
of the following is not matter? a. | air | b. | dirt | c. | water | d. | all are
matter | | |
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18.
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The
step in the scientific method in which previous studies are reviewed and the writing done by
professionals on the subject is looked at. a. | Hypothesis | b. | Conclusion | c. | Results | d. | Research | | |
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19.
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The
part of the scientific method in which an inference is made as to why the results happened and a
determination as to whether the hypothesis was supported a. | Results | b. | Conclusion | c. | Research | d. | Question | | |
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20.
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In this
experiment what is the independent variable/manipulated variable? a. | the
speed | b. | the weights of the balls | c. | the heighth of
the tower | d. | who dropped the balls | | |
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21.
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In an
experiment done by a scientist, 117 students were given a test. The scientist divided the 117
into two homogeneous groups. Group one studied on average 1 hour or more. Group two did not study.
The average scores of both groups were compared to determine which scored higher. The question the
scientist was trying to answer was...... a. | How many students study? | b. | How many smart
students were tested? | c. | Which group will score higher, studiers or
non-studiers? | d. | How many students take tests? | | |
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22.
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Did
you study an hour or more for this test? a. | I did not study at all | b. | I did study a
combined total of an hour or more. | c. | I know everything and therefore it is unnecessary to waste my
time this way | d. | I am stupid and studying is futile. I will just fail anyway
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23.
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Which
comes first in an experiment? a. | Doing the experiment | b. | Writing the
procedures | c. | Finding the results | d. | Stating a
conclusion | | |
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24.
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Scientist prefer what type of data is an experiment? a. | Qualitative | b. | Quantitative | c. | Independent | d. | Controlled | | |
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25.
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Why
is it important to write down the materials and procedures in an experiment? a. | So the
experiment can be recreated | b. | So that you won't have any free time in
class | c. | So that the teacher will have something to
grade | d. | none of the above | | |
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26.
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The
school board implemented a reading program, a character education program, a teacher training program
and a building clean up program last year (as an experiment). They had hoped that test scores would
improve because of this. The test scores did improve. Which program caused the positive
test score improvement? a. | The clean up program beacuse kids learn better in clean
schools. | b. | The character education program because students with good
character choose to do better. | c. | The teacher training program because better teachers mean
better scores. | d. | It is not a controlled exeriment and an answer can not be
determined. | | |
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27.
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This is what
starts a hurricane, wind, and tornados. The hot wet air rises, cools, produces rain and falls.
This is called: a. | Convection | b. | Francis Affect | c. | Heat
confiscation | d. | Arson | | |
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28.
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 (Joule's)
Given that the
grey is water. What might be the question in this experiment? a. | How fast will
the weight fall? | b. | How much weight will water hold up? | c. | Will the
falling weight cause a difference in the temperature of the water? | d. | Will the amount
of weight affect how fast the paddle wheel spins? | | |
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29.
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What is the
independent variable? a. | The plants | b. | The
lights | c. | The amount of plant growth | d. | Fertilizer | | |
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30.
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What is wrong
with this question for an experiment? a. | It is not a controlled experiment. | b. | The question
asks for qualitative results | c. | There are too many variables | d. | There are errors
in spelling. | | |
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31.
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What is the
dependent variable/ respondent variable? a. | The battery type | b. | The number of
batteries | c. | How long the battery lasted | d. | Devices that the
batteries powered | | |
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