Question 3
in what order are the steps of the scientific method usually completed?
question 3 options:
form a hypothesis, define the problem, perform experiments, organize and analyze data, draw conclusions, communicate results.
define the problem, form a hypothesis, organize and analyze data, perform experiments, draw conclusions, communicate results.
define the problem, form a hypothesis, perform experiments, organize and analyze data, draw conclusions, communicate results.
question 4
a farmer conducts an experiment to determine whether or not feeding his milk cows an organic diet affects the taste of the cow's milk. he selects two cows and feeds them equal amounts of food. one cow receives organic food and the other cow receives food that is not organic. the farmer concludes cows that eat organic food produce milk that tastes better. based on his experiment, the farmer develops an advertising campaign promoting his milk as better tasting because his cows are fed organic food. why might some consumers find his advertising misleading?
question 4 options:
because the farmer did not offer taste testing for the public before advertising.
because the farmer is not offering a return policy for the milk in the event that his customers do not like the taste.
because the farmer tested only 2 cows giving insufficient data to from a reliable conclusion.
question 5
which of the following is an example of qualitative data?
question 5 options:
each mouse in the study lived for 3 years.
each mouse in the study was 75 cm long.
each mouse in the study has brown ears.
each mouse in the study ate four times a day.
question 6 (4 points)
which of the following is an example of quantitative data?
question 6 options:
each rat in the study has brown and white spots.
each rat in the study has a tail that is 25 cm long.
each rat in the study chose to eat organic food.
eat rat in the study chose to sleep close to other rats.
question 7
why is data important to scientific endeavor?
question 7 options:
data is the information that supports or does not support a hypothesis.
data is the information that proves all hypotheses are correct.
data is the information that proves whether or not a scientist is biased.
data is necessary to form a hypothesis.
question 8
which set of data would be best illustrated with a bar graph?
question 8 options:
the effect of hours spent exercising on heart rate.
the number of skyscrapers in 5 different cities.
an illustration of how the humidity in the air responds to the temperature of the air.
data showing how the number of hours spent studying affects the score on an exam.
question 9
the data shown in the table would be best represented by a line graph.
country number of nuclear power plants
united states 104
canada 18
russia 31
china 11
japan 55
question 9 options:
true
false
question 10
all graphs need a title.
question 10 options:
true
false
question 11
as the number of rabbits in a community goes up, the number of foxes in the same community goes up. this is an example of what type of relationship?
question 11 options:
direct
indirect
cyclic
non-related
question 12
the number of spiders in the house and the outside air temperature have an indirect relationship. what will happen to the number of spiders in the house as the outside air temperature decreases?
question 12 options:
decrease
increase
stay the same
increase then decrease in a regular pattern
question 13 (4 points)
scientific conclusions are based only on observable evidence.
question 13 options:
true
false
question 14
why is it necessary to evaluate an experiment?
question 14 options:
to poke holes in a scientist's results.
to prove the experiment results are incorrect.
to determine whether or not conclusions are reliable and accurate.
question 15
evaluating an experiment can include identifying things you would do differently if you were to repeat the experiment later.
question 15 options:
true
false
question 16
which of the following could negatively affect the reliability of an experiment?
question 16 options:
testing only one variable at a time.
having variables that are difficult or even impossible to control.
keeping the control monitored to make sure it remains unchanged.
question 17
scientists can communicate the results of a scientific investigation in numerous ways including the use of journals and periodicals.
question 17 options:
true
false
question 18
which of the following is required to change the scientific knowledge base?
question 18 options:
changes in society's opinions on something.
new evidence that calls for the revision of old ideas.
changes in a scientist's personal religious views.
question 19 (4 points)
failures in scientific endeavor are discouraging and have little value.
question 19 options:
true
false