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Scientific Method
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#Applying the scientific process elements of variables, constants, and experimental/control groups.
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1
The responding variable that you measure or is the result is known as the:
Dependent variable
Constant
Problem variable
Control
2
Will Skittles dissolve faster in cold water or hot water? The dependent variable is _____.
How long it takes the Skittles to dissolve
The amount of Skittles dissolved
The temperature of the water
The color of the Skittle that dissolved fastest
3
What is the difference between a control group and an experimental group?
The control group is the group NOT being tested
There is no difference between the groups
The control group is the group being tested
4
Which of the following statements is TRUE about REPEATED TRIALS?
Repeated trials are not really needed to support data.
Repeated trials are a waste of time.
Repeated trials can only be performed by scientists.
Repeated trials can provide consistent and reliable data.
5
Will Skittles dissolve faster in cold water or hot water? What measuring tool would you need?
A thermometer only
A ruler only
A stopwatch only
A thermometer, graduated cylinder, and stopwatch
6
When doing an experiment, how many variables can be tested?
Three
Two
One
Four
7
A factor in an experiment that is kept the same in all trials is called a(n):
Dependent variable
Independent variable
Control
Constant
8
Will Skittles dissolve faster in cold water or hot water? Constants would include _____.
The same amount of water
All of the above are constants
The same amount of Skittles placed in the water
The same container to put the water in
9
What is the control group in this experiment?
The plant receiving the most water
The plant receiving no water
The plant receiving the most sunlight
The plant receiving no sunlight
10
If a Skittle is put in hot water, then it will dissolve faster than a Skittle in cold water.
Control Group
Hypothesis
Experimental Group
Constants
11
What is the difference between a control group and an experimental group?
The experimental group is the group NOT being tested
There is no difference between the groups
The experimental group is the group being tested
12
What is the experimental group or groups in this investigation?
Plants 1, 2, and 3
Plants 2 and 3
Plant 3 only
Plant 1 only
13
Which items would be constants for this experiment?
The amount of water and the amount of fertilizer
The type of plant and the type of container for the plant
The amount of water and the type of plant
The plant receiving no water
14
Does the brand of shoe affect how high a player can jump? The independent variable is _____.
The color of the shoe
The brand of shoe
How high the player can jump
How tall the player is
15
The best way to state a hypothesis is _____.
Will _____, affect _____?
If _____, then _____.
I believe _____, because _____.
16
What is the independent variable for this experiment?
The amount of water
The type of fertilizer
The amount of sunlight
The type of plant
17
Will Skittles dissolve faster in cold water or hot water? The independent variable is _____.
The color of the skittle
The temperature of the water
The amount of skittles
The amount of water
18
What is wrong with the following experiment?
There was no control group
The plants were not put in the same container
More than one variable was changed
The plants did not receive enough water
19
The variable you change, on purpose, in the experiment is known as the:
Independent Variable
Dependent Variable
20
Does the brand of shoe affect how high a player can jump? The dependent variable is _____.
The color of the shoe
The brand of shoe
How high the player can jump
How tall the player is
21
Is a hypothesis always true?
Yes
No
