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Scientific method
Scientific method
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a review of the scientific method
Flashcards
40 cards
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Practice quiz
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Host live
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Questions
40
Answers
1
Which shows the correct order of the scientific method?
Question, Research, Experiment, Data, Hypothesis, Conclusion
Question, Hypothesis, Research, Data, Experiment, Conclusion
Question, Hypothesis, Experiment, Data, Research, Conclusion
Question, Research, Hypothesis, Experiment, Data, Conclusion
2
How would you set up an experiment to test if Hilde's fertilizer (HF) increases tomato size?
Make observations about your tomato plants.
Give all plants HF and then measure the size of tomatoes.
Tomato plants need fertilizer to grow.
Give 10 plants HF and 10 no HF, measure size of tomatoes.
3
Where is the fire extinguisher located?
nowhere in the classroom
in the cabinet under the sink
behind the lab bench - under the chalkboard
next to the sink
4
The ______ group gets the normal treatment.
variable
control
experimental
5
What is the first step of the scientific method?
Identify a problem
Inform other people
Come to a conclusion
Observe and record data
6
As the pressure increases, the volume__
stays the same
increases
increases, then decreases
decreases
7
What conclusion can be drawn from the graph?
The control plane flew farther than the experimental plane
Dart with the paperclip flew farther than the control plane
Paperclip added too much weight so the plane did not fly far
Dart with the paperclip flew farther than experimental plane
8
If your hypothesis is proven wrong, what should you do?
Say " Oh well"
Change your data to fit your hypothesis
Write your conclusion anyway
Revise your hypothesis and try again
9
A source of error and suggestions for improvement would be found in the ___
conclusion
hypothesis
observations/data
procedure
10
What is wrong with the graph?
The paper clip plane is too high.
The X-axis and Y-axis are backwards.
It is a bar graph not a line graph.
The Y- axis is not evenly spaced.
11
If she gives fertilizer, then her tomato plants grow bigger. What should be the independent?
The tomato plants are growing bigger.
giving fertilizer.
Plants grown with just water.
Plants grown with fertilizer.
12
When should you use the eyewash?
whenever you are thirsty
when directed to do so by the teacher
when you need to wash your eyes
never
13
What do scientists do after they analyze their results?
Observe and record data
Identify a problem
Come to a conclusion
Inform other people
14
A student states that the graduated cylinder contains 150 mL of water. This statement is
inference
prediction
observation
hypothesis
15
How many variables can an experiment have?
3
4
2
1
16
If she gives fertilizer, then her tomato plants grow bigger. What should be the control?
fertilizer.
Plants grown with fertilizer.
The tomato plants are growing bigger.
Plants grown with just water.
17
What is appropriate to do in class?
horseplay
not listening to directions
none of them
loud talking
18
Does shampoo increase hair growth? What is the name of this part of an experiment?
This is a problem.
This is a procedure.
These are observations/data.
This is a conclusion.
19
Which statement is an inference?
A thermometer shows that the air temperature is 56°F.
A weather vane indicates the wind is coming from the west.
A mineral sample shows a gray-black streak when tested.
Based on previous data, 10 hurricanes may occur next year.
20
Which graph shows change over time?
line graph
double bar graph
circle graph
bar graph
21
Where should the test tube be pointed when you are heating the contents of the test tube?
not towards anyone
towards you
in any direction
towards your lab partner
22
Which plane is the experimental plane?
the plane that flew 752cm
two of the above
the dart with the paperclip
the plane that flew 395 cm farther
23
The tomato plants were redder than the control plants. This is a __
qualitative observation
quantitative observation
neither qualitative nor quantitative observation
both qualitative and quantitative observation
24
If she gives fertilizer, then her tomato plants grow bigger. What should be the experimental?
The tomato plants are growing bigger.
fertilizer.
Plants grown with just water.
Plants grown with fertilizer.
25
The tomato plants were tastier than the control plants. This is a __
neither qualitative nor quantitative observation
qualitative observation
both qualitative and quantitative observation
quantitative observation
26
What would be an appropriate title for this graph?
Effect of adding a paperclip to the distance the plane flies
Distance versus type of plane
Dart with a paper clip
Airplane lab
27
The difference between a control group and an experimental group is called a ___?
hypothesis
variable
design
experiment
28
What are some possible sources of error with the data collection?
the experimental plane could have hit the ceiling
All of the answers are possible sources of error
the experimental plane could have a bent nose
both planes are not made out of the same type of paper
29
A _____ is a statement that contains an If... then statement.
control
question
hypothesis
experimental
30
If she gives fertilizer, then her tomato plants grow bigger. What should be the dependent?
Plants grown with fertilizer.
The tomato plants are growing bigger.
fertilizer.
Plants grown with just water.
31
The tomato plants were 4.6 cm bigger than the control plants. This is a __
neither qualitative nor quantitative observation
qualitative observation
quantitative observation
both qualitative and quantitative observation
32
The tomato plants were redder and 4.6 cm bigger than the control plants. This is a __
quantitative observation
neither qualitative nor quantitative observation
both qualitative and quantitative observation
qualitative observation
33
At the end of an experiment, what should a scientist do?
Come to a conclusion
Observe and record data
Identify a problem
Inform other people
34
Fold down the wings of the airplane. What is the name of this part of an experiment?
This is a conclusion.
This is a procedure.
These are observations/data.
This is a problem.
35
What is a statement that can be tested?
observation
control
hypothesis
inference
36
Why do you need a large sample size in order to do an experiment?
You don't need a large sample size.
to make sure that your experiment is invalid
in order to "average out" any individual differences
to make sure that every individual is counted
37
Which of the following is an appropriate title for a graph?
Airplane lab
Control vs experimental planes
The average distance of the planes.
The effect of different paper on how far a plane flies.
38
You can make a(n) ___ by using your 5 senses.
control
inference
experimental group
observation
39
The __ is the part of the experiment that you change on purpose.
control
dependent variable
constant
independent variable
40
My hypothesis was proven correct. What is the name of this part of an experiment?
These are observations/data.
This is a problem.
This is a conclusion.
This is a procedure.
