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.
|
|
|
1.
|
The diverse ways in which
scientists study the natural world is known as scientific inquiry.
_________________________
|
|
|
2.
|
When you look at the shape and
structure of a bird's nest, you are making an inference.
_________________________
|
|
|
3.
|
The number of bears in a park
is an example of scientific data. _________________________
|
|
|
4.
|
A variable is a possible
explanation for a set of observations or answer to a scientific question.
_________________________
|
|
|
5.
|
A scientist changes the
manipulated, or independent, variable during a controlled experiment.
_________________________
|
|
|
6.
|
A responding, or
dependent, variable changes as a result of changes to the manipulated variable.
_________________________
|
|
|
7.
|
The International System of
Units is based on the metric system of measurements. _________________________
|
|
|
8.
|
A theory tells if the
data support the hypothesis. _________________________
|
|
|
9.
|
A scientific theory is a
well-tested idea that explains and connects a wide range of observations.
_________________________
|
|
|
10.
|
A marine biologist helps
people regain their strength after an injury. _________________________
|
Multiple
Choice
Identify the letter of the choice that best completes the statement or answers the
question.
|
|
|
11.
|
What skill is a scientist using
when she listens to the sounds that whales make? a. | interpreting
data | b. | developing hypotheses | c. | making observations | d. | drawing
conclusions | | |
|
|
|
12.
|
Measurements of the heights of
various plants in an experiment are called a. | data. | b. | inquiries. | c. | theories. | d. | inferences. | | |
|
|
|
13.
|
Your friends return from a
canoe trip on the lake and they are dripping wet. What inference might you make? a. | Their clothes are wet. | b. | They are tired. | c. | Their canoe tipped over. | d. | They are skillful at
canoeing. | | |
|
|
|
14.
|
A possible explanation for a
set of observations is known as a (n) a. | variable. | b. | hypothesis. | c. | theory. | d. | conclusion. | | |
|
|
|
15.
|
A scientist hypothesizes that
the temperature at which an alligator's egg is incubated will determine whether the alligator will be
a male or female. If the scientist conducts a controlled experiment, temperature would be
called a. | the responding variable. | b. | the conclusion. | c. | the dependent
variable. | d. | the manipulated variable. | | |
|
|
|
16.
|
A scientist conducted an
experiment to determine how the amount of salt in a body of water affects the number of plants that
can live in the water. In the experiment, the responding variable is a. | the amount of salt in the water. | b. | the temperature of the water. | c. | the depth of the water. | d. | the number of plants in the
water. | | |
|
|
|
17.
|
Which of the following helps
scientists all over the world communicate about experimental results with one
another? a. | They all speak English. | b. | They all use the International System of Units. | c. | They all use an English System of Measurement. | d. | They all speak Latin. | | |
|
|
|
18.
|
When you analyze a table of
measurements taken during an experiment, you are a. | posing
questions. | b. | interpreting data. | c. | making inferences. | d. | manipulating
variables. | | |
|
|
|
19.
|
When you decide whether or not
the data support the original hypothesis, you are a. | making an
inference. | b. | making an observation. | c. | drawing a conclusion. | d. | posing a
question. | | |
|
|
|
20.
|
When a scientist shares his or
her findings with other scientists, the scientist is a. | communicating. | b. | experimenting. | c. | hypothesizing. | d. | theorizing. | | |
|
|
|
21.
|
What is a well-tested concept
that explains a wide range of observations? a. | scientific
observation | b. | scientific inquiry | c. | scientific theory | d. | scientific
inference | | |
|
|
|
22.
|
What is the most important
skill in any experiment? a. | making
measurements | b. | communicating ideas | c. | making observations | d. | practicing safe laboratory
practices | | |
|
|
|
23.
|
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. | Begin heating any materials that will need to be
hot. | c. | Mix your materials with those of another group to save
time. | d. | Read every step of the procedure to make sure you understand
it. | | |
|
|
|
24.
|
Which of the following
scientists might study the growth of plants? a. | veterinarian | b. | botanist | c. | physical
therapist | d. | physician | | |
|
Short
Answer
|
|
|
|
|
|
25.
|
Identify the manipulated
variable in the experimental setup shown in the diagram.
|
|
|
26.
|
What hypothesis might be tested
by the setup shown in the diagram?
|