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WorksheetsHow Scientific knowledge forms
Total questions: 24
Worksheet time: 13mins
Name
Class
Date
1.
A ________ is a dominant explanation that is supported by a great deal of evidence
a)
Hypothesis
b)
Theory
c)
Observation
2.
A theory cannot be changed
a)
True
b)
False
3.
This is created after data is found that cannot explain the theory.
a)
Data
b)
Law
c)
Hypothesis
d)
Conclusion
4.
Why might we see a theory change over time?
a)
Younger people are now involved
b)
New information
c)
New guesses
d)
It has not been changed for awhile
5.
What must a new proposed theory always do?
a)
Drop the entire idea because it is faulty
b)
Explain old findings in a new way, and drop the new findings
c)
Keep old findings, and explain new findings
d)
Look at old findings in a new way and explain new findings
6.
What do scientists use theories for?
a)
To explain a single idea
b)
Making sense of a broad range of facts
c)
To take a random guess
7.
_____ is a person's point of view that affects the way they see things.
a)
Bias
b)
Conclusion
c)
Hypothesis
d)
Theory
8.
We can reduce bias by making sure an experiment is _________ and ____________.
a)
Difficult, correct
b)
Bias, long
c)
Correct, bias
d)
Repeatable, reproducible
9.
An experiment is repeatable when the materials used and steps taken can be copied by others.
a)
True
b)
False
10.
The results of an experiment are reproducible if scientists can completely different results.
a)
True
b)
False
11.
Who is considered the father of the scientific method?
a)
Newton
b)
Bacon
c)
Crick
d)
Watson
12.
How does the science community confirm that the work of others is valid?
a)
Take a vote
b)
Anything in a textbook is valid
c)
If it seems logical, it must be logical
d)
Others carry out the same experiment
13.
Which of the following best describes a scientific theory?
a)
Once it is established it can never be changed
b)
A good guess made by very smart people
c)
Explain a broad range of observed facts
d)
An explanation proven beyond all doubt
14.
Why is scientific knowledge subject to change over time?
a)
Scientists are constantly changing their minds
b)
It must explain new observations that challenge theories
c)
As natural laws change, knowledge must change
d)
Opinions change over time
15.
Which is NOT a way a scientist can maintain credibility with other scientists and society?
a)
Presenting only the data that proves a hypothesis
b)
Communicate all data openly
c)
Design experiments that can be replicated
d)
Maintain accurate records of experiments
16.
Which of the following is Francis Bacon most known for?
a)
Discovering the structure of DNA
b)
Promoting abstract thought as a way to understand the world
c)
Encouraging people to experiment and observe phenomena
d)
Devising the law of universal gravitation
17.
Which resource best fits a student researching lead bullets used in hunting?
a)
U.S. fish and wildlife service website
b)
U.S. department of health & human services website
c)
U.S. geological survey website
d)
U.S. department of agriculture website
18.
A student is curious about factors affecting tarnished jewelry. Which resource is best?
a)
a dictionary entry for "tarnish"
b)
an article explaining why metals tarnish
c)
a list of what metals are most likely to tarnish
d)
a website about a product that removes tarnish
19.
student is curious about how spicy flavors affect the ability to taste. Which resource is best
a)
a detailed diagram of the human digestive system
b)
chapter about the role taste buds play in the nervous system
c)
article about how to distinguish different kinds of peppers
d)
report about an experiment on how chili peppers affect taste
20.
Student is curious about what factors affect results of hair dye. Which resource is best?
a)
webpage about how hair dye works
b)
article about the history of hair coloring
c)
pamphlet about a specific brand of hair dye
d)
list of the most common ingredients in hair dyes
21.
Student is curious about how water chemistry affects coral reefs. Which resource is best?
a)
U.S. food and drug administration website
b)
U.S. department of health & human services website
c)
Centers for disease control and prevention website
d)
National oceanic and atmospheric administration website
22.
Who contributed greatly to the scientific method used by scientists today?
a)
Darwin
b)
Priestly
c)
Bacon
d)
Watson
23.
Why does scientific knowledge change over time?
a)
Modern scientists are smarter than earlier ones
b)
Experiments produce different results each time
c)
New technology allows scientists to make new observations
d)
The world changes as it ages so old ideas no longer apply
24.
Jim studies light pollution affecting turtles. Why should he reproduce his results?
a)
To change the patterns of turtles
b)
To obtain the same results using different controls
c)
To increase the amount of evidence supporting his results
d)
To reduce the amount of light pollution near turtles
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