Check for errors and run the experiment again Change the hypothesis to match the conclusion Change the variable so the data will match the hypothesis Ignore the data and present the results anyway ID: 286170
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Slide1
When performing an experiment, what should be done if the data DO NOT support the hypothesis?
Check for errors and run the experiment again
Change the hypothesis to match the conclusion
Change the variable so the data will match the hypothesis
Ignore the data and present the results anyway
And the answer is…..
ASlide2
A group of students is investigating how long it takes for mold to grow on slices of bread at different temperatures. Which is the best means of collectin
g data?
Check each piece of bread for mold once a week
Check each piece of bread daily until mold appears
Check the warm bread daily, the cool bread weekly
Check only the warm bread daily since the cool bread is a control
And the answer is…….
BSlide3
Which question cannot be answered by science?
Which birds fly north in the spring?
Which planet is the most interesting?
How fast will a salt crystal dissolve?
Why does the seafloor spread?
And the answer is……
BSlide4
Which of the following statements is a scientific hypothesis?
Flossing has proven to be an effective method of improving oral health
Many infectious diseases, such as gum disease, are caused by microorganisms
In general any method that reduces bacteria in the mouth will improve oral health
An individual who flosses daily will be less likely to get gum disease than one who flosses weekly
And the answer is….
DSlide5
Which correctly arranges three scientific terms – theory, law, hypothesis – from LEAST to MOST accepted or tested?
Theory, hypothesis, law
Hypothesis, law, theory
Theory, law, hypothesis
Hypothesis, theory, law
A
nd the answer is……
DSlide6
A student hypothesized that robins prefer large birdhouses. To test this, he built four birdhouses of different sizes. What was the independent variable in the student’s study?
The location of the birdhouses
The number of birds in each bird house
The size of the birdhouse
The season of the year
And the answer is……
CSlide7
What is the difference between a scientific question and a non-scientific question?
A scientific question will produce a claim that can be tested
A science question may have more than one right answer
A scientific question cannon produce useful knowledge
A scientific question can only be answered by a professional scientist
And the answer is……
ASlide8
Which BEST describes why scientific knowledge changes over time?
Scientist change their minds about natural processes
Science must explain new observations that challenge existing theories
As natural laws change, scientific knowledge must change with them
Scientific knowledge is a set of opinions, and opinions change over time
And the answer is……
BSlide9
Which is a true statement regarding the graphing of data?
It is always better to leave data in a table than to graph it
Bar graphs are the best type of graphs for scientific data
For any given set of data, there is only one correct graph or way to display it
Data can be displayed in many types of graphs in order to show
different things about the data
And the answer is……
DSlide10
Which BEST describes a hypothesis?
It is a law that has been proven true
It is a claim that can be tested
It is an opinion of a scientist
It is a description of an event
And the answer is……
BSlide11
Jasmine wants to determine if crayfish prefer light or dark areas. What is the first step she should take in conducting a scientific inquiry?
Graph the data
Make a hypothesis
Collect the data
Write a conclusion
And the answer is……
BSlide12
In 1999 a team of researchers claimed that it had made a new element.
Two other research teams repeated the experiment but could not reproduce the results. The original team retracted their claim. What do these events say about scientific inquiry?
If one team makes a finding, other teams will try to prove them wrong
It was impolite for the other teams to question the first team’s results
Physical laws change over time, so researchers cannot always replicate results
Experimental results must be reproducible to be accepted as valid science.
And the answer is……
D