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Nature of Science Review Flashcards | StudBud
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Nature of Science Review
Nature of Science Review
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#scientific method#graphing
Flashcards
31 cards
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Questions
31
Answers
1
In an experiment, what is a confounding variable?
Any factor that can skew the results of the experiment.
All of these are correct.
Unintentional or Intentional factors that affect the D.V.
Extra independent variables tested during an experiment.
2
Which of the following are ways you can make observations?
With your five senses.
With tools
All of these are correct.
With your eyes. Which is clearly related to your senses.
3
Which of these measurements has the most significant digits?
1.24 mm
1.246 mm
1.2463 mm
1.2 mm
4
When collecting data, it is important to make sure the data collected is...
accurate
awesome.
precise
accurate and precise
5
Which of these measurements has the most significant digits?
0.128 mm
0.12 mm
1.3 mm
0.00000013 mm
6
What is the approximate wolf population in 1979?
750
50
30
2500
7
How are observations and inferences related?
Inferences are needed to make good observations.
None of these are correct.
Observations are used to make good inferences.
Inferences are things you measure. Observations can be seen.
8
If you are collecting data that is precise but not accurate, what is the most likely cause?
Tool is off (not calibrated).
Natural variation.
All of these are correct.
Sloppy data collection techniques
9
In an experiment, "blue light makes plants grow better" what is the independent variable?
Soil
Sunlight
Plant Growth
The Blue Light
10
T or F: Scientific Theories are supported by many observations and experiments.
T
F
11
Which best describes the difference between a scientific law and theory?
Theory = Truth, Law = Guess
Theory = Guess, Law = Truth
Theory = How, Law = Why
Theory = Why, Law = How
12
In an experiment, "blue light makes plants grow" what is the dependent variable?
Plant Growth
Blue Light
Soil Type
Light Type
13
T or F: Evidence to support a hypothesis can be obtained from observations and experiments.
True
False
14
T or F: Scientific Theory is another name for a guess.
F
T
15
What is on the X-Axis in this graph?
None of These.
Wolves
Year
Moose
16
T or F: A scientific theory can be proven wrong or invalid with a new observation.
T
F
17
Why does this graph show only correlation? (and not correlation and causation)
Data correlates. No mechanism for one to affect the other.
Information can only be inferred and never proven.
This graph has two different independent variables
None of these
18
What is the measurement of the gray bar using this ruler? Use Significant Digits.
7.70 cm +/- 0.5 cm
7.7 cm +/- 0.5 cm
7.70 cm +/- 0.05 cm
7.7 cm +/- 0.05 cm
19
What could you do to make this a better graph?
How 'bout we see bear populations on that graph?
Hmmmm...Title would be nice.
Nothing. It is perfect.
This should be a bar graph.
20
What is the degree of uncertainty for this graduated cylinder?
+/- 0.05 mL
+/- 2 mL
+/- 0.5 mL
+/- 1 mL
21
What is science?
A way of understanding the world through observations.
None of these are correct.
The discovery of absolute and unchanging scientific facts.
The study of living things on the planet.
22
Which of the following is a qualitative observation about elephants?
The average elephant eats 300 pounds of food a day.
The average elephant lives to 60 years old.
The average elephant has gray leathery skin.
The average elephant weighs 6000 kilograms.
23
What is on the Y-Axis in this graph?
Year
Wolves
Moose
Wolves AND Moose
24
Which of the following can be inferred by this graph?
Correlation
None of these
Causation
Correlation and Causation
25
T or F: Sample size is
unimportant
when developing and running an experiment.
F
T
26
How many steps are there in the scientific method?
6
8
7
5
27
In "blue light makes plants grow" which of these would be the control group?
plants grown in blue light
plants grown in sun light
plants grown in the dark
all of these are correct.
28
T or F: Some factors/variable are kept the same in both the control and experimental group.
F
T
29
T or F: It is OK to have multiple Independent Variables in an experiment.
F
T
30
What type of graph is this?
Line Graph
Bar Graph
Scatter Plot
Super Line Graph
31
What is the dependent variable in this graph?
No. of Forests
No. of Animals
None of these.
Year
