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Scientific Method Review_GKH Flashcards | StudBud
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Scientific Method Review_GKH
Scientific Method Review_GKH
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Questions
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Answers
1
Find the
quantitative
observation.
The dog's tongue is wet.
The dog's eyes are brown.
The dog has four legs.
The prefers Blue Buffalo food.
2
How many variables can we change at a time, in a controlled experiment?
Only One at a time
Only Three
As many as we like to test
Only Two
3
Find a
Qualitative Observation
about this picture.
2 feet
1 eye
purple hair
6 teeth
4
Observation or Inference: It will rain soon
Observation
Inference
5
In the paper helicopter experiment, what was the
Independent variable (IV)
?
Time it took to reach the ground (speed)
Length of the helicopter wing
Type of paper
Height from which the helicopter was dropped
6
In the paper helicopter experiment, what was the
control group
?
Helicopter with a wing lengths 5cm, 3cm and 1cm
Helicopter with no wings (0cm)
Length of the helicopter wing
Time it took to reach the ground (speed)
7
How can we improve the validity of a test?
Performing repeated trials (repeating experiment multiple times)
Changing more than one variable at a time
Having a control group
8
Why did we perform the paper helicopter experiment 3 times (
3 trials
) for each wing length
Just for Fun
To eliminate constants
To ensure for a control group
To improve the validity of our test
9
In the paper helicopter experiment, what was the
Dependent variable (DV)
?
Time it took to reach the ground (speed)
Length of the helicopter wing
Type of paper
Height from which the helicopter was dropped
10
Quantitative or Qualitative?
The leaves had turned orange.
Quantitative Observation
Qualitative Observation
11
In the paper helicopter experiment, what was the
experimental group
?
Helicopter with no wings (0cm)
Time it took to reach the ground (speed)
Length of the helicopter wing
Helicopter with a wing lengths 5cm, 3cm and 1cm
12
In the paper helicopter experiment, what was the
Constants
?
Type of paper
Length of the helicopter wing
Time it took to reach the ground (speed)
Height from which the helicopter was dropped
13
In the paper helicopter experiment, what was the
Constants
?
Length of the helicopter wing
Height from which the helicopter was dropped
Time it took to reach the ground (speed)
Type of paper
14
Observation or inference: I saw the man slip
Observation
Inference
