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Experimental Design
Experimental Design
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review quiz for scientific method
Flashcards
25 cards
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Questions
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Answers
1
The process of creating technology is called
cost-benefit analysis
intended benefit
engineering
bioengineering
2
Why do scientists analyze the results of experiments?
because scientists need to prove they were right
because it is the next step in the process
b/c they need to prove/disprove hypotheses with evidence
because that is the point of being a scientist
3
In a controlled experiment:
a variable is not needed.
a control group is compared w/ 1 or more experimental groups
all factors should be different
there are at least two variables
4
Which is a benefit of science?
it can predict the apocolypse
increased number of car accidents
recycling systems to save resources
increased air and water pollution
5
An
inference
you'd make from observing that the class is quiet and Mrs. M is staring at you:
she really likes your outfit
you are talking while she's talking
she is waiting to hear more of your witty comments
she is in awe of your wicked great haircut
6
Which variable is known as the manipulated variable?
controlled variable
independent variable
dependent variable
responding variable
7
The first thing to do in the event of an accident in science lab is:
notify the teacher
pull out your phone and start filming
clean it up
call the office
8
What is a model?
a representation of an object or system
a smaller version of the real thing
a possible substitute for a hypothesis
a nonworking copy
9
Possible explanations or answers to questions are:
scientific methods
controlled experiments
hypotheses
variables
10
Which variable is known as the "responding variable"?
independent variable
manipulated variable
dependent variable
controlled variable
11
Which of the following are part of the scientific method for investigation?
confrontation, adulation, liquefaction
physical, mathematical, conceptual
search, observance, mineralization
research, observation, experimentation
12
What differs between the control group and experimental groups in a controlled experiment?
a hypothesis
a variable
everything
nothing
13
What does volume measure?
the amount of matter in an object
the size of a body or region in three-dimensional space
the amount of matter in a given area
the size of a surface or a region
14
Which variable in a controlled experiment is measured and is called the responding variable?
controlled variable
dependent variable
manipulated variable
independent variable
15
Which variables are the ones that are not changed but are kept the same during an experiment?
dependent variables
manipulated variables
controlled or constant variables
independent variables
16
What are some tools used to collect and analyze scientific data?
thermometer, pliers, drill, computer
meter stick, balance scale, stopwatch, computer
keyboard, computer, printer, scanner
scissors, meter stick, calculator, stapler
17
How do you analyze scientific data?
Check it over and then copy it.
Write a long summary paragraph about the entire experiment.
Try to find some way to make it support your hypothesis.
Organize it w/ charts/ graphs, do calculations if necessary.
18
If I conduct an experiment and my data does not support my hypothesis, what do I do?
report my data and observations accurately and honestly
change my hypothesis to support the data
change my data so they support my hypothesis
change both the hypothesis and data
19
The personal feelings of the experimenter which may affect the results of the experiment are:
prototypes
quantitative
bias
prosthetics
20
Factor in an experiment that is changed by the experimenter is the ___________ variable.
independent
dependent
constant
responding
21
What are common units for measuring length?
liter, killiliter, centiliter
kilometer, meter, centimeter
gram, centigram, kilogram
milliliter, milligram, centiliter
22
A type of equipment used to measure mass in science lab is:
a graduated cylinder
a triple beam balance
a ruler
a beaker
23
A safety item in the science lab that is used to put out fire on clothing is:
the overhead sprinkler
the fire blanket
the emergency eyewash
the fire extinguisher
24
What are some methods of communicating the results of scientific investigations?
call the news media, hand out flyers
write a sci. paper, make a presentation, create a website
advertise the results in a magazine
reveal results to close friends and family
25
Experiment testing only one factor at a time, and has control group/ experimental groups is:
hypothesis
variable
scientific method
controlled experiment
