What is the independent variable in an experiment?

It is the part of the experiment that is being changed.

The control group is the group that is used...

to compare experimental groups to

"Eating breakfast increases performance at school." What is the hypothesis for this statement?

If students eat breakfast, then they'll make better grades.

What are constant variables?

Variables that are kept the same in the experiment.

Which groups are the experimental groups?

"Never Break Pencils" and "Pointy Pencils" brand test group

Which group is the control group?

"Always Sharp" brand test group

How does a hypothesis have to be written?

if/then statement + testable + specific

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Scientific Method

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Scientific Method quiz for 7th grade

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Questions 13

Answers

1
What part of the experiment is in place so to keep the experiment fair and used for comparing?
trials
constant variables
results
independent variables
2
How many independent variables can be changed in an experiment?
2
1
3
as many as you would like
3
What is the independent variable in an experiment?
It is the group that is not being changed.
It is the part of the experiment that is being changed.
It is the part of the experiment that is being controlled.
It is the part of the experiment that is being measured.
4
The control group is the group that is used...
to compare experimental groups to
measure the dependent variable with
used to measure the independent variable with
change the variables
5
"Eating breakfast increases performance at school." What is the hypothesis for this statement?
I think eating breakfast helps you in school.
I don't like to eat breakfast.
If students eat breakfast, then they'll make better grades.
If you want to do well in school, you should eat breakfast.
6
What are constant variables?
Variables that are measured in an experiment.
Variables that are kept the same in the experiment.
Variables that are changed to make test the IV.
Variables that are not allowed to have the IV applied.
7
Which groups are the experimental groups?
pencils not being used at all
"Always Sharp" brand test group
"Never Break Pencils" and "Pointy Pencils" brand test group
all 3 brands
8
Choose the correct answer to this question
G
J
F
H
9
Which are the constants needed for this experiment?
the length of the pencils
person/persons testing the pencils
all of the above
the amount and type of writing being done
10
What is one constant variable in this experiment?
same time the walk starts
the different weather he walks in
the brands of sticks
the hypothesis
11
Which group is the control group?
"Always Sharp" brand test group
"Pointy Pencils" brand test group
all 3 brands
"Never Break Pencils" brand test group
12
How does a hypothesis have to be written?
if/then statement + testable + specific
as a question
in a complete sentence
if/then statement
13
Choose the correct answer.
B
D
C
A

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