Multiple Choice
Identify the
choice that best completes the statement or answers the question.
|
|
|
1
|
Quantitative data is data that is
A) | made up | C) | a description | B) | represented by a number | D) | from a controlled
experiment |
|
|
|
2
|
A hypothesis that is not supported by the data that has been collected and
analyzed
A) | is rejected. | C) | is known as an inaccurate forecast. | B) | often predicts a
different observation. | D) | is
accepted. |
|
|
|
3
|
A hypothesis is a
A) | concluding statement. | B) | proven statement. | C) | testable possible
explanation of an observation. | D) | definite answer to a given
problem. |
|
|
|
4
|
The English physician Ronald Ross wanted to try to find the cause of malaria.
Based on his observations, Dr. Ross suggested that the Anopheles mosquito might spread malaria
from person to person. This suggestion was a
A) | hypothesis. | C) | scientific “truth.” | B) | theory. | D) | prediction. |
|
|
|
5
|
What skill is a scientist using when she listens to the sounds that whales
make?
A) | interpreting data | C) | drawing conclusions | B) | developing hypotheses | D) | making
observations |
|
|
|
6
|
Factors in an experiment that do not change from group to group are
called
A) | constants | C) | dependent variables | B) | controls | D) | independent
variables |
|
|
|
7
|
All living things maintain a balance within their cells and the environment
through the process of
A) | development. | C) | homeostasis. | B) | evolution. | D) | growth. |
|
|
|
8
|
Biology is the study of
A) | energy. | C) | life. | B) | the weather. | D) | minerals. |
|
|
|
9
|
The process by which organisms keep their internal conditions relatively stable
is called
A) | homeostasis. | C) | photosynthesis. | B) | metabolism | D) | evolution. |
|
|
|
10
|
A scientist testing the affects of a chemical on apple yield sprays an orchard
with the chemical. A second orchard does not receive the chemical. In the fall, the number of apples
harvested from each orchard is counted. Which of the following is the dependent variable in the
experiment?
A) | the chemical | C) | the number of apples | B) | the second orchard | D) | the first
orchard |
|
|
|
11
|
A planned procedure to test a hypothesis is called a(n)
A) | control. | C) | experiment. | B) | variable. | D) | prediction. |
|
|
|
12
|
Scientific hypotheses are most often tested by the process of
A) | inferring. | C) | communicating. | B) | analyzing data. | D) | experimenting. |
|
|
|
13
|
A scientist who wants to study the effects of a new fertilizer on plants would
probably
A) | use different numbers of plants in each group. | B) | include a control
group that received no fertilizer. | C) | not worry about measuring the amount of
fertilizer used. | D) | give each experimental group the same amount of the
fertilizer. |
|
|
|
Use the passage below to answer questions 14 and 15
Gary
noticed that two plants of the same type were different in size after three weeks, even though they
were initially the same size when his mother planted them on the same day. Since the larger plant was
in the full sun all day and the smaller plant was in the shade of a tree for most of the day, Gary
believed that the sunshine was responsible for the difference in plant size. In order to test this,
Gary bought ten small plants of the same size and type. He also made sure they have the same amount
and type of soil. Gary then built a frame to hold a canvas roof over five of the plants, while the
other five were nearby but out in the sun. Gary was careful to make sure that each plant received
exactly the same amount of water and plant food every day.
|
|
|
14
|
Which of the following is a reasonable statement of Gary's hypothesis?
A) | Plants that grow in the shade grow larger. | C) | Plants that receive the same amount
of water and plant food will grow the same amount. | B) | Plants that get more sunshine grow larger than
plants that get less sunshine. | D) | Plants that don't receive water will die. |
|
|
|
15
|
What scientific reason might Gary have for insisting that the container size for
the all plants be the same?
A) | Gary wanted to make sure the size of the container did not affect differential plant
growth in his experiment. | C) | Gary wanted his garden to look organized. | B) | Gary wanted to
determine if the size of the container would affect the plant growth. | D) | There is no possible scientific reason for
having the same-sized containers. |
|
|
|
16
|
The process by which organisms make more of their own kind is called
A) | gene. | C) | heredity. | B) | mutation. | D) | reproduction. |
|
|
|
17
|
Sitting in class sweating profusely, you notice that the door seems to be closed
every time you perspire in class. This is most closely associated with which step in the scientific
method?
A) | Recording data | C) | Forming a hypothesis | B) | Making an observation | D) | Conclusion |
|
|
|
18
|
A scientific theory
A) | is a controlled experiment. | B) | is absolutely certain. | C) | may be revised as
new evidence is presented. | D) | is
unchangeable. |
|
|
|
19
|
All living organisms are composed of
A) | diatoms. | C) | cellulose. | B) | cells. | D) | prions. |
|
|
|
20
|
A scientist hypothesizes the temperature at which an alligators egg is incubated
will determine whether the alligator will be male or female. The independent variable is
A) | the temperature | C) | the male alligators | B) | the incubator | D) | the gender of the
alligator |
|
|
|
21
|
In a controlled experiment, a scientist is studying how long it takes parachutes
of different sizes to fall to the ground. What is the dependent variable?
A) | the time it takes for the parachute to drop | B) | the size of the
parachute | C) | the height from which the parachute is dropped | D) | the size of the
object carried by the parachute |
|
|
|
22
|
A scientist plants two rows of corn for experimentation. She puts fertilizer on
row 1 but does not put fertilizer on row 2. Both rows receive the same amount of sun and water. She
checks the growth of the corn over the course of five months. What is acting as the control in this
experiment?
A) | The corn with fertilizer | C) | The height of the corn plants
| B) | The corn without fertilizer | D) | The amount of water
|
|
|
|
23
|
A scientist who wants to study the effects of fertilizer on plants sets up an
experiment. Plant A gets no fertilizer, Plant B gets 5 mg of fertilizer each day, and Plant C gets 10
mg of fertilizer each day. Which plant is the control group?
A) | Plant C | C) | All of them | B) | Plant A | D) | Plant B |
|
|
|
24
|
A controlled experiment allows the scientist to isolate and test
A) | a mass of information. | C) | a single variable. | B) | a conclusion. | D) | several
variables. |
|
|
|
25
|
Which skill are you using when you use your five senses to gather
information?
A) | designing experiments | C) | observing | B) | developing hypotheses | D) | posing
questions |
|
|
|
26
|
A series of logical steps that is followed in order to solve a problem is called
the
A) | scientific theory. | C) | scientific method. | B) | experimental process. | D) | model method. |
|
|
|
27
|
A unifying explanation for a broad range of observations is called a
A) | hypothesis. | C) | prediction. | B) | controlled experiment. | D) | theory. |
|
|
|
28
|
All living things must
A) | move | C) | have two parents | B) | eat food | D) | maintain
homeostasis |
|
|
|
29
|
A student decides to set up an experiment to determine the relationship between
the growth rate of plants and the presence of detergent in the soil. He sets up ten seed pots. In
five of the seed pots, he mixes a precise amount of detergent with the soil. The other five seed pots
have no detergent in the soil. The five seed pots with detergent are placed in the sun, and the five
seed pots with no detergent are placed in the shade. All ten seed pots receive the same amount of
water as well as the same number and type of seeds. He grows the plants for two months and charts the
growth every two days. What is wrong with his experiment?
A) | The student has too few pots. | C) | The student has no experimental
control on the soil. | B) | The student has two variables different between
the groups. | D) | The student
did not add detergent to all ten pots. |
|
|
|
30
|
Children tend to resemble their parents due to
A) | heredity. | C) | metabolism. | B) | mutation. | D) | homeostasis. |
|