Answer at least 25 points of questions. You may answer up to
a total of 30 points worth of questions.
Multiple Choice
Identify the choice that best completes the statement or answers
the question.
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1.
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The ways in which people change the world around them to meet their needs or
solve practical problems are called
a. | science. | b. | feedback. | c. | technology. | d. | systems. |
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2.
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What is the goal of technology?
a. | to study the natural world | b. | to understand how the natural world
functions | c. | to improve the way people live | d. | to produce and deliver
cereal |
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3.
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Science and technology are
a. | completely unrelated. | b. | not important. | c. | dependent on each
other. | d. | the same thing. |
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4.
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The metric system of measurement is based on the number
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5.
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The basic unit of length in the metric system is the
a. | foot. | b. | kilometer. | c. | mile. | d. | meter. |
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6.
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How many meters are there in a kilometer?
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7.
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The kilogram is the basic metric unit of
a. | volume. | b. | length. | c. | mass. | d. | weight. |
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8.
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Mass and weight are different because
a. | weight depends on the amount of matter an object contains. | b. | weight depends on
the force of gravity. | c. | mass does not depend on the amount of matter an
object contains. | d. | mass depends on the force of gravity. |
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9.
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The amount of space an object takes up is its
a. | volume. | b. | density. | c. | length. | d. | mass. |
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10.
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If a shoe box measures 6 cm high, 7 cm wide, and 20 cm long, what is its
volume?
a. | 420 cm | b. | 420 cm3 | c. | 840
cm | d. | 840 cm3 |
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11.
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To calculate the density of an object, you would
a. | divide its mass by its volume. | b. | divide its mass by its
length. | c. | multiply its mass by its volume. | d. | divide its volume by its
mass. |
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12.
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The SI unit of time is the
a. | minute. | b. | second. | c. | day. | d. | hour. |
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13.
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The SI unit of temperature is the
a. | kelvin. | b. | degree Celsius. | c. | degree
Fahrenheit. | d. | metric degree. |
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14.
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A line graph shows
a. | how the responding variable changes in response to the manipulated
variable. | b. | changes in the responding variable only. | c. | how the manipulated
variable changes on its own. | d. | changes in the manipulated variable
only. |
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15.
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The horizontal axis of a graph runs
a. | left to right. | b. | diagonally. | c. | up and
down. | d. | vertically. |
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16.
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The slope of a graph tells you
a. | how much x changes for every change in y. | b. | how much y
changes for every change in x. | c. | the ratio of the horizontal change to the
vertical change. | d. | the ratio of the run to the rise. |
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17.
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The most important lab safety rule is
a. | always wear a lab apron. | b. | design and conduct your own experiments without
asking your teacher. | c. | always follow your teacher’s instructions
and textbook directions exactly. | d. | always wear safety
goggles. |
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18.
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What is the first thing you should do if an accident occurs?
a. | Go to the nearest hospital. | b. | Notify your teacher. | c. | Find the emergency
equipment. | d. | Start first aid treatment. |
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19.
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Using one or more of your senses to gather information is called
a. | observing. | b. | inferring. | c. | predicting. | d. | classifying. |
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20.
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Observations that deal with a number or amount are called
a. | quantitative observations. | b. | operational observations. | c. | qualitative
observations. | d. | manipulated observations. |
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21.
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Observations that deal with descriptions that cannot be expressed in numbers are
called
a. | quantitative observations. | b. | manipulated observations. | c. | operational
observations. | d. | qualitative observations. |
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22.
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Which of the following is an example of thinking scientifically about a
topic?
a. | investigating the invention of bicycles | b. | evaluating the costs
of bicycles | c. | reading a consumer report about bicycles | d. | finding out how
bicycles work |
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23.
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When scientists create a representation of a complex process, they are
a. | predicting. | b. | classifying. | c. | making
models. | d. | inferring. |
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24.
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A possible explanation for a set of observations or answer to a scientific
question is called a(n)
a. | hypothesis. | b. | prediction. | c. | law. | d. | theory. |
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25.
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In science, a hypothesis must be
a. | testable. | b. | manipulated. | c. | correct. | d. | controlled. |
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26.
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During an experiment, which factors must be controlled so that researchers can
draw a logical conclusion from the experiment?
a. | variables | b. | inquiries | c. | theories | d. | operational
definitions |
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27.
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During an experiment, if you purposely change the temperature to test a
hypothesis, the temperature is called the
a. | manipulated variable. | b. | operational variable. | c. | dependent
variable. | d. | responding variable. |
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28.
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The factor that may change in response to the manipulated variable is called
the
a. | responding variable. | b. | independent variable. | c. | operational
variable. | d. | hypothetical variable. |
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29.
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Many nonscience careers require a knowledge of science because workers
must
a. | develop new scientific laws and theories. | b. | use the process of
scientific inquiry. | c. | keep up with new developments in
science. | d. | use materials and processes that follow scientific
principles. |
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30.
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In a scientific experiment, the responding variable can also be called
the
a. | manipulated variable. | b. | dependent variable. | c. | operational
variable. | d. | independent variable. |
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31.
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An organized way to collect and record scientific observations is with
a(n)
a. | data table. | b. | inference. | c. | operational
definition. | d. | model. |
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32.
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One useful tool that may help a scientist interpret data by revealing unexpected
patterns is a
a. | variable. | b. | theory. | c. | graph. | d. | law. |
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33.
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Which stage of the scientific process enables a scientist to check the work of
other scientists?
a. | communicating | b. | classifying | c. | concluding | d. | hypothesizing |
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34.
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Being able to identify good sources of scientific information and apply the
knowledge to problems in your life is a part of having
a. | scientific hypotheses. | b. | scientific literacy. | c. | scientific
laws. | d. | scientific inquiry. |
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35.
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Prototypes are used to
a. | patent an invention. | b. | test the operation of a
product. | c. | identify a need. | d. | research a
problem. |
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36.
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Identifying the cause of any problems in a design is an example of
a. | troubleshooting. | b. | prototyping. | c. | patenting. | d. | brainstorming. |
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37.
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A working model used to test a design is called a
a. | patent. | b. | prototype. | c. | trade-off. | d. | product. |
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38.
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Once the causes of a problem with a product are identified, the next step is
to
a. | communicate the solution. | b. | file a patent. | c. | redesign the
product. | d. | build a prototype. |
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39.
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Making a forecast of what will happen in the future based on past experience or
evidence is called
a. | observing. | b. | inferring. | c. | predicting. | d. | classifying. |
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40.
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When scientists put things into categories or group together items that are
alike in some way, they are
a. | inferring. | b. | predicting. | c. | classifying. | d. | making models. |
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41.
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Which branch of science includes the study of the stars?
a. | earth and space science | b. | life science | c. | physical
science | d. | scientific literacy |
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42.
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Which branch of science includes the study of plants, animals, and the human
body?
a. | earth and space science | b. | life science | c. | physical
science | d. | scientific literacy |
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43.
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Which branch of science includes the study of magnetism?
a. | earth and space science | b. | life science | c. | physical
science | d. | scientific literacy |
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44.
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Most scientific questions being investigated today
a. | involve only one field of science. | b. | span the different fields of
science. | c. | involve a small number of scientists. | d. | do not require cooperation between
scientists. |
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