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Scientific Method #2 Review

Total questions: 39

Worksheet time: 39mins

Name
Class
Date
1.
Independent variable means:
a)
What the scientists changes
b)
What doesnt change
c)
What changes by itself
d)
What you expect to change
2.
Which of the following questions would be BEST answered using a survey?
a)
Will a golf ball, rubber ball, or ping pong ball bounce highest?
b)
Which flavor ice cream is the most popular?
c)
Does the amount of blood in the water, affect the number sharks in the area?
d)
Is there a connection between how fast you run and your heart rate?
3.
What is the dependent variable?
Sam wants to see if he can get more hummingbirds to his feeder if he puts more sugar in the water.
a)
amount of humingbirds
b)
amount of water
c)
amount of sugar
4.
The boy was hanging on the branch.
a)
Observation
b)
Inference
5.
Choose the BEST hypothesis from these choices for the following question:
"Does reading a book everyday make you read faster?"
a)
After reading a book everyday, I will be able to read better.
b)
You have to read everyday in order to be a better reader.
c)
If I read 20 more words per minute, then I will be a better reader.
d)
 If I read a book everyday, then I will be able to read at least 20 more words per minute.
6.
The ONLY way to test a scientific hypothesis is to perform an experiment.
a)
True
b)
False
7.
A student wants to test the effects of type of exercise on heart rate.  What is the dependent variable?
a)
heart rate
b)
type of exercise
c)
amount of exercise
d)
time of day exercise occurs
8.

Different types of bushes are kept in a greenhouse to see which will produce the most flowers. The independent variable in this experiment is

a)

greenhouse

b)

number of flowers

c)

types of bushes

d)

oxygen

9.
Choose the BEST hypothesis from these choices for the following question:
"What will happen if I exercise everyday?"
a)
I will be healthier if I exercise everyday.
b)
I will run longer if I exercise everyday.
c)
If I exercise everyday, then I will be able to run longer
d)
I will be able to run longer, then I get more healthy everyday.
10.
Read the following hypothesis:
If I use a thicker object to block my phone, then my phone will have a weaker signal.
What is the independent variable?
a)
How weak the signal is
b)
How thick the object is
c)
How good your cell phone is
d)
The color of the object used
11.
What words should be used when writing a hypothesis?
a)
if, then
b)
if, then, because
c)
first, next, then
d)
I believe that
12.
What is the effect of salt water on the average of the 3 tallest blades of grass?
The above question is an example of:
a)
Hypothesis
b)
Conclusion
c)
Experiment
d)
Problem
13.
A scientists opinion is a good source of information to use in a scientific investigation
a)
True
b)
False
c)
Sometimes.  It depends on the scientist
14.

Group A plants will be given water with fertilizer & Group B plants will be given just water.

a)

Group A is the control group

b)

Group A is the experimental group

c)

Group B is the control group

d)

Group B is the experimental group

15.
How many independent variables should be tested at a time?
a)
Three
b)
Zero
c)
Doesn't Matter How Many
d)
One
16.
The ONLY way to test a hypothesis is to perform an experiment
a)
True
b)
False
c)
Sometimes
17.

Which statement is NOT an inference?

a)

The woman is sick

b)

The woman's eyes are half closed

c)

The woman is drinking coffee

d)

The woman is calling in sick to work

18.
Mary wants to find out if plants grow more leaves when grown in red, blue, or green light.
What is the DEPENDENT variable?
a)
Type of plant
b)
Type of light
c)
Height of the plant
d)
Number of leaves
19.
Read the following statement and identify the DV:
If the amount of snow increase on the roads, then the number of school buses able to pick up students will decrease
a)
amount of snow on the road
b)
number of students
c)
number of school buses
20.
Which statement is NOT an observation?
a)
The girl has a red and yellow headband
b)
The girl is holding a paperbag
c)
The girl is in kindergarten
d)
The girl has dark hair
21.
Is this statement an inference or observation?
The men are arguing because the man on the left looks angry.
a)
inference
b)
observation
c)
could be both
d)
neither
22.
Eating breakfast increases performance in school. One group of students eats breakfast every day, while the other group eats no breakfast.  At the end of the quarter, I check the grades of each student.

Which is the dependent variable?
a)
eating breakfast or not
b)
grades
c)
how much breakfast the students eat
23.
What step does every scientific experiment usually begin with?
a)
hypothesis
b)
question/problem
c)
procedures
d)
conclusion
24.
Which is NOT a step in the scientific method?
a)
Make observation
b)
Form a theory
c)
Collect data
d)
Form a hypothesis
25.
If you increase the amount of spinach you eat, then you will increase the iron in your blood. 
What's the dependent variable?
a)
increase the amount of iron in your blood
b)
spinach you eat
26.

Will a construction paper air plane fly faster than an airplane made from notebook paper? Choose the best written hypothesis.

a)

If I make a paper airplane from notebook paper, then it will fly faster than construction paper.

b)

Notebook paper will make a paper airplane fly faster than construction paper

c)

If I make a paper airplane from notebook paper, then it will fly the same speed as one made from construction paper.

d)

I think the construction paper air plane will fly faster.

27.

Which side of a penny will hold more drops of water? Choose the best written hypothesis.

a)

If I use the heads side of a penny, then it will hold more drops of water than tails.

b)

The penny will hold more water on the heads side

c)

Tails is the best side to hold water

d)

Tails will hold more drops of water.

28.
Explaining the color of a chemical would be what kind of observation?
a)
Qualitative 
b)
Quanitative
29.
What step does every scientific experiment begin with?
a)
hypothesis
b)
question/problem
c)
procedures
d)
conclusion
30.
The hypothesis you make is always correct.
a)
True
b)
False
31.

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, what are the controlled variables?

a)

Type of plant, amount of music, and sunlight

b)

Water, apple juice, milk

c)

Plant growth

32.
Squidward found new reeds to tryout for his clarinet.  He used an APPLAUSOMETER to measure applause after playing  Under the Sea with each reed.  The results were put in the table.
What was controlled?
a)
The Song
b)
The Reed
c)
The Applause
33.
Squidward found new reeds to tryout for his clarinet.  He used an APPLAUSOMETER to measure applause after playing  Under the Sea with each reed.  The results were put in the table.
What was the independent variable?
a)
The Song
b)
The Reed
c)
The Applause
34.

Choose the best-written hypothesis that answers the question:

Question: Does music make students perform better on quizzes and tests?

a)

If students do better, then students will not listen to music while taking a test.

b)

Music is good so they will do better.

c)

If students listen to music while taking a test, then they will do worse because they are distracted.

d)

Music can be distracting if it's too loud.

35.
Choose the best-written hypothesis that answers the question:
Question: Does eating an apple a day keep you from getting sick?
a)
If you eat an apple a day, then you wont get sick as much because apples are healthy for you.
b)
Eating an apple a day is healthy for you.
c)
Then you eat an apple a day if you wont get sick.
d)
Apples are healthy, so it wont make you sick.
36.

Choose the best-written hypothesis that answers the question:

Question: Does eating breakfast help students do better in the morning?

a)

Breakfast is bad because it makes you sick in the mornings.

b)

Breakfast is good because it gives you energy.

c)

Then students will eat breakfast in the morning if students do better in the morning.

d)

If students eat breakfast every day, then they will do better in the mornings because they are more energized.

37.

Does the type of shoes affect the running speed? Which is the best written hypothesis?

a)

If the subject wears boots, then the subject will jump the fastest.

b)

If the subject wears heels, then the subject will run the slowest.

c)

The subject wears Nike, then the subject will run the fastest.

d)

If I wear Nike, then I will run the slowest.

38.
A hypothesis is based on observations and research
a)
True
b)
False
39.
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