Multiple Choice (Value 11)
Identify the choice that best completes the statement or answers
the question.
|
|
|
1.
|
Science differs from other disciplines, such as history and the arts, because
science relies on
a. | facts. | c. | observations. | b. | testing explanations. | d. | theories. |
|
|
|
2.
|
Information gathered from observing a plant grow 3 cm over a two-week period
results in
a. | inferences. | c. | hypotheses. | b. | variables. | d. | data. |
|
|
|
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.
|
Which of the following is a valid hypothesis for why a plant appears to be
dying?
a. | The plant is not being watered enough. | b. | The plant is being watered too
much. | c. | The plant is receiving too much sunlight. | d. | all of the
above |
|
|
|
5.
|
In science, a hypothesis is useful only if
a. | it is proven correct. | c. | it can be tested. | b. | it can be proven incorrect. | d. | the explanation is already
known. |
|
|
|
6.
|
A student suggests that a certain species of bacteria grows better in the light
than in the dark. The student has 10 culture plates on which to grow the bacteria. Which
of the following would be the best experiment to test this idea?
a. | Grow 10 plates in the dark. | b. | Grow 10 plates in the light.
| c. | Grow 5 plates in the dark and 5 plates in the light. | d. | Grow 10 plates in
the light, with extra water. |
|
|
|
7.
|
Which of the following variables present in Redi’s experiment on
spontaneous generation is NOT a controlled variable?
a. | gauze covering that keeps flies away from meat | b. | types of jars
used | c. | types of meat used | d. | temperature at which the jars were
stored |
|
|
|
8.
|
A controlled experiment allows the scientist to isolate and test
a. | a conclusion. | c. | several variables. | b. | a mass of information. | d. | a single
variable. |
|
|
|
9.
|
Scientists publish the details of important experiments so that
a. | their work can be repeated. | b. | their experimental procedures can be
reviewed. | c. | others can try to reproduce the results. | d. | all of the
above |
|
|
|
10.
|
The ability to reproduce results is an important part of any
a. | hypothesis. | c. | law. | b. | theory. | d. | experiment. |
|
|
|
11.
|
A theory
a. | is always true. | b. | is the opening statement of an
experiment. | c. | may be revised or replaced. | d. | is a problem to be
solved. |
|
Modified True/False (Value 6)
Indicate whether the statement is true or false. If false,
change the identified word or phrase to make the statement true.
|
|
|
12.
|
An important goal of a scientist is to use evidence to learn about the
natural world. _________________________
|
|
|
13.
|
“The bird has brown spots on its wings” is an example of an
inference. _________________________
|
|
|
14.
|
Scientists are persuaded by logical arguments that are supported by
evidence. _________________________
|
|
|
15.
|
The variable that is deliberately changed is called the responding
variable. _________________________
|
|
|
16.
|
Field studies are used to study animals in the laboratory.
_________________________
|
|
|
17.
|
A scientist working in the early 1900s came up with a hypothesis. Over the
next 100 years, other scientists tested the hypothesis and found that it always held true. This
hypothesis can now rightfully be called a result. ________________________
|
Completion
Complete each
statement.
|
|
|
18.
|
During an experiment, measuring the height of a plant in centimeters would be an
example of collecting ____________________ data.
|
|
|
19.
|
The scientist named ____________________ finally settled the argument over
whether or not life could arise from nonliving matter.
|
Short Answer
|
|
|
20.
|
A number of rats are divided into two groups: One group is fed a normal diet,
whereas the other group is fed the same diet but with one necessary mineral left out. The animals
receiving the normal diet remained healthy; those in the other group grew weaker. Formulate a
hypothesis based on this experiment.
|