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The Scientific Method

Total questions: 49

Worksheet time: 12hrs 15mins

Name
Class
Date
1.
The scientific method produces reliable results.
a)
False
b)
True
2.
If you wake up on a Saturday morning, and notice you cannot find your phone, you have made a(n)
a)
discovery
b)
law
c)
idea
d)
observation
3.
Science is a continually ongoing process.
a)
True
b)
False
4.
Which of the following is NOT one of the five senses?
a)
Taste
b)
Sight
c)
Thinking
d)
Hearing
5.
In a hypothesis, you should see the words _____ and then.
a)
if
b)
that
c)
now
d)
when
6.
Qualitative data relies on numbers.
a)
False
b)
True
7.
Which variable do you measure?
a)
Independent
b)
Dependent
8.
Which variable do you change in an experiment?
a)
Dependent
b)
Independent
9.
Testing a hypothesis often involves a(n):
a)
answer
b)
experiment
c)
problem
d)
safety check
10.
What is a hypothesis?
a)
A hypothesis is the right answer to an experiment.
b)
A hypothesis is the wrong answer to an experiment.
c)
A hypothesis is an educated guess.
d)
I don't know.
11.

The name of the information that you get from your experiment (you organize it into charts and graphs).

a)

observations

conclusion

b)

data

c)

variables

d)

hypothesis

12.

"If plants are exposed to sunlight, then they will grow taller."

What part of the scientific method is this an example of?

a)

Procedure

b)

Hypothesis

c)

Question

d)

Results

13.

Which step? "Why is the sliced cheese all moldy?"

a)

make a hypothesis

b)

draw a conclusion

c)

ask a question

d)

experiment

14.

Which step? "I think sliced cheese gets moldy because people touch it more."

a)

make a hypothesis

b)

draw a conclusion

c)

ask a question

d)

experiment

15.

Which step? "I was right: Touching the cheese is the factor in making cheese moldy."

a)

make a hypothesis

b)

draw a conclusion

c)

ask a question

d)

experiment

16.

At the end of the scientific method, scientists should always:

a)

share what they learned and their results with other scientists

b)

make a bar graph

c)

celebrate if their hypothesis was correct

d)

keeps their results secret to their ideas do not get stolen

17.
The steps of the scientific method, in order are:
a)
Observation, Research, Hypothesis, Plan, Collect Data, Conclusion
b)
Hypothesis, Plan, Collect Data, Conclusion, Observation, Research
c)
Observation, Research, Collect Data, Plan, Hypothesis, Conclusion
d)
Conclusion, Observation, Research, Collect Data, Plan, Hypothesis
18.
To make sure your experimental results are reliable, you should:
a)
Write more than one hypothesis
b)
Use more than one variable
c)
Only do the experiment one time
d)
Repeat the experiment many times
19.
The experimental group in an experiment should have
a)
Many different variables
b)
 The one variable being changed and tested
c)
All of the normal conditions
d)
Different materials than the control group
20.
The DATA you observe and write down in a chart during an experiment or the condition that results from the change in the experiment is the
a)
Dependent Variable
b)
Independent Variable
c)
Materials
d)
Control
21.
The one thing you CHANGE in an experiment is the
a)
Dependent Variable
b)
Independent Variable
c)
Control
d)
Data
22.
An experiment has 10 plants growing in sunlight and 10 plants growing in red light.  The plant height is measured after one month.  What is a hypothesis for this experiment? 
a)
If the plant is grown in red light, then the plant will die. 
b)
The plants are dying
c)
Plants prefer sunlight
d)
Plants grow tall in red light
23.
An experiment has 10 plants growing in sunlight and 10 plants growing in red light.  The plant height is measured after one month. What is the dependent variable in this experiment? 
a)
The red light
b)
The sunlight
c)
The plant height
d)
The Plants
24.
An experiment has 10 plants growing in sunlight and 10 plants growing in red light.  The plant height is measured after one month. What is the INDEPENDENT variable in this experiment? 
a)
The plant height
b)
The plants
c)
The sunlight
d)
The red light
25.
An experiment has 10 plants growing in sunlight and 10 plants growing in red light.  The plant height is measured after one month. Which plants are the control group? 
a)
The plants in sunlight
b)
The plants in red light
26.
An experiment has 10 plants growing in sunlight and 10 plants growing in red light.  The plant height is measured after one month. Which plants are the experimental group? 
a)
The plants in sunlight
b)
The plants in red light
27.
A scientist performs an experiment to see if acids have an effect on the health of a particular type of plant. Three sets of plants were treated with acidic solutions of known pH while the control set was treated with a solution of neutral pH 7.Which is the best conclusion for this experiment?
a)
Acid has no effect on the health of this type of plant.
b)
B. High acidity is helpful to this type of plant.
c)
C. Low acidity is harmful to this type of plant.
d)
High acidity is harmful to this type of plant.
28.
The graph below shows atmospheric carbon dioxide levels since the year 1880.Which of the following conclusions can be drawn from this graph
a)
 Atmospheric carbon dioxide levels are responsible for global temperature change.
b)
 Atmospheric carbon dioxide levels have been rising at about the same rate for the past century.
c)
Atmospheric carbon dioxide levels have remained the same over the past century.
d)
 Atmospheric carbon dioxide levels have been rising at an increasingly higher rate as the past century has progressed.
29.

A research group has discovered that damselflies, a type of dragonfly, are being infected by a particular type of aquatic protozoan. Both young and adult damselflies are not directly infected by the protozoan but contract the infection from the prey they eat. The graph shows the percentage of adult damselflies infected by protozoans during the summer and early fall. Which of the following statements is correct.

a)

Infection in embanked ponds increased during the sampling period.

b)

Protozoans were more common in creek-fed ponds than embanked ponds.

c)

Protozoans reproduce more quickly in embanked ponds than creek-fed ponds.

d)

Infection in creed-fed ponds remained constant throughout the sampling period.

30.
Carmen conducted an experiment to determine if listening to different types of music would affect a person’s pulse. Her hypothesis was that pulse rate would change with different types of music. Each person listened to seven different selections of music for 30 seconds each. Each person’s pulse was taken before the music and then after each 30-second interval of music. The pulses were taken again after the music selections were completed. Based on her experiment, Carmen concluded that a person’s pulse rate changed when the person listened to different types of music.  Which component is missing from Carmen’s experiment?
a)
a question
b)
a hypothesis
c)
a control group
d)
a description of the experiment
31.
An osmosis investigation was conducted using chicken eggs to represent cells with semipermeable membranes. The mass of each egg was measured to determine how much water diffused into or out of the eggs. The eggs were first soaked in vinegar to dissolve the shell. Each egg was then placed in one of three different solutions for 24 hours. The table below shows the results of the investigation. Based on this experiment, which of the following should be inferred about cells with semipermeable membranes?
a)
Substances other than water may also cross the cell membrane.
b)
Substances other than water may block pores in the cell membrane.
c)
 Water enters the cell when placed in environments of high water concentration.
d)
Water leaves the cell when placed in environments with a low concentration of solutes
32.
In order to be accepted, a scientific theory must be
a)
 widely tested and supported by extensive data
b)
 based on the results of a single experiment
c)
 controversial and cause debate
d)
 in line with all previous historical ideas
33.
In an appropriately designed experiment, a scientist is able to test the effect of
a)
 a single variable
b)
 multiple variables
c)
 the hypothesis
d)
 scientific observations
34.
Conclusions based on an experiment are most likely to be accepted when
a)
they are consistent with experimental data and observations
b)
 they are derived from investigations having many experimental variables
c)
 scientists agree that only one hypothesis has been tested
d)
 hypotheses are based on one experimental design
35.
An experiment was carried out to determine whether drinking caffeinated soda increases pulse rate. The pulse rates of two groups of people at rest were measured. Group A was then given caffeinated soda and group B was given caffeine-free soda. One hour after drinking the soda, the pulse rates were measured. The participants in the experiment were all the same age, and they were all given the same amount of soda. The dependent variable in this experiment is the
a)
type of soda given to each group
b)
amount of soda given to each group
c)
 pulse rate of each group
d)
age of participants in each group
36.

Some researchers are developing a new fertilizer designed to improve the growth of plants in hot, dry climates. The fertilizer was applied to one hundred desert plants in a greenhouse. The average daytime temperature in the greenhouse was 90°F, and the humidity levels were low. Which is best for the researchers to do next?

a)

A compare plants that received fertilizer to similar plants that received none

b)

B begin selling the fertilizer to gardeners living in hot, dry climates

c)

C change the conditions in the greenhouse and retest the fertilizer

d)

D test the fertilizer on plants that are adapted to cooler climates

37.

A scientist investigates the effect of carbon dioxide on plant height. The scientist grows plants in several closed containers. All the plants receive the same amounts of water and light, but the air in each container has a different amount of carbon dioxide. What is the independent variable in this experiment?

a)

the amount of carbon dioxide in each container

b)

the number of plants in each container

c)

the amount of water provided to the plants

d)

the height of each plant after a period of time

38.

A meteorologist recorded high temperatures for five days at three locations on land. The data are shown in the table below. Which of the following statements is correct.

a)

Areas at the beach have the coolest temperatures

b)

Areas farther from the beach always have the warmest temperatures.

c)

Areas at the beach have the most stable temperatures.

d)

Areas farther from the beach always have the same temperature as areas at the beach

39.

The students concluded that the plants grown indoors grew faster because they received better quality light than the plants grown outdoors. Which is the most likely reason this conclusion may be flawed?

a)

The students measured the plants at different times.

b)

The students should have grown different types of plants.

c)

The growth of the plants in each set was affected by more than one factor.

d)

The outdoor plants grew faster than the indoor plants.

40.

A student filled three identical cups with equal amounts of water. The student placed each cup in a room with a different air temperature. After a few days, the student compared the amounts of water remaining in each cup.

What cause-and-effect relationship does this investigation support?

a)

As evaporation decreases, air temperature decreases.

b)

As evaporation increases, air temperature increases.

c)

At higher air temperatures, more water evaporates.

d)

At higher air temperatures, less water evaporates.

41.

Students in a science class plan to investigate a factor that affects the rate at which a pendulum swings.


In which way should the students manipulate the variables to get valid results in this investigation?

a)

use equal string lengths and different plumb bob masses

b)

use different string lengths and different plumb bob masses

c)

use equal string lengths and the same plumb bob shapes

d)

use different string lengths and different plumb bob shapes

42.

The table shoes different types of pollination data for the fruit from one plant species.


Which graph best represents some of the data in the table?

a)
b)
c)
d)
43.
An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid: water, apple juice, or milk. What variables should be kept constant/controlled? 
a)
type of plant, flower pot,  soil, and amount of sunlight
b)
water, apple juice, milk
c)
only the amount of sunlight
d)
type of plant only
44.
Why do we want to test one variable at a time?
a)
Because it is hard to setup a data table with more
b)
To know what is causing the changes. This helps us understand cause and effect.
c)
It is what has always been done
45.
What is being changed in this experiment?
a)
ramp height
b)
the speed that the ball rolls
c)
type of ball
46.
What is being measured or the result/effect of this experiment?
a)
ramp height
b)
the speed that the ball rolls
c)
type of ball
47.
What is being kept constant?
a)
ramp height
b)
speed of the ball rolling
c)
type of ball
48.
An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, the independent variable is ...
a)
The type of plant
b)
The amount of sunlight
c)
The type of music
d)
The type of liquid
49.

Choose the best-written hypothesis that answers the question:

Question: Why is my room warmer during the day than at night?

a)

Sunlight is making my room warmer.

b)

Mr. Nuzzo has the heat turned on in the morning.

c)

If I close my blinds during the day, then my room will be cooler because sunlight cant get in.

d)

Sunlight actually cools down a room.

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