a suggested solution to a problem.

Why are repeated trials necessary?

To verify results and add validity.

Which one is an inference?

Marcus saw the sun and thought it would be hot outside.

is anything measured or recorded using your 5 senses.

backed up by 100's-1000's of hypotheses.

Identify the observation.

Mary heard laughing in the hallway.

Conclusions are always based on...

data obtained by an experiment.

The dependent variable...

is the data from an experiment.

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Questions 17

Answers

1
A hypothesis is...
backed up by 100's-1000's of theories.
a suggested solution to a problem.
based on experimental evidence.
an illogical conclusion.
2
Why are repeated trials necessary?
To form inferences.
For scientific job security.
To verify results and add validity.
To tryout different hypotheses.
3
Jaylen says if he listens to music while he studies he will do better on his test. This is a(n)
observation
conclusion
hypothesis
independent variable
4
When testing levels of sunlight for plant growth which is not a constant?
Type of plant.
Amount of water.
Type of soil.
Amount of sunlight.
5
A valid Experiment has all of the following except...
One Independent Variable
A control Group
An Experimental Group
At Least 3 Constants
6
Which one is an inference?
Marcus saw the sun and thought it would be hot outside.
Nancy saw firemen putting out a fire.
Marcus felt the heat from sun.
Nancy heard a firetruck outside.
7
An observation...
is always the dependent variable.
is based off of inferences and past experiences.
is something you can always see.
is anything measured or recorded using your 5 senses.
8
A theory is...
anything recorded or measured using your 5 senses.
just a guess.
backed up by 100's-1000's of hypotheses.
a description of an event.
9
Identify the observation.
Mary heard laughing in the hallway.
Mary thinks something funny happened in the hallway.
John has a feeling lunch will be bad today.
John thinks he wont have to run today so he wore flipflops.
10
Conclusions are always based on...
the retest.
observations before an experiment.
data obtained by an experiment.
the opinions of the experimenter.
11
A control group is used for...
forming inferences.
experimentation.
making smoothies.
comparison.
12
Based on the graph, the independent variable is...
Your reaction to baby
Location of baby
So cute!
How tolerable a baby is.
13
The dependent variable...
is the cause, not the result.
is the data from an experiment.
is the conclusion of an experiment.
is a suggested solution to a problem.
14
The independent variable...
always goes on the Y axis.
is the thing you change.
is the data from an experiment.
is changed by the dependent variable.
15
The dependent variable...
can be changed by the person performing the experiment.
always goes on the X axis.
always goes on the Y axis.
is something you measure using your 5 senses.
16
What can you infer based on the picture?
Rainbows are colorful.
It had recently rained.
The grass is green.
River water is cold.
17
How many clowns were seen on month 5?
1.5
.5
2
1

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