Name: 
 

Chapter 1 Review



Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 

 1. 

What must you find out after conducting an experiment and collecting data?
a.
if the answers are right
b.
if the results support your hypothesis
c.
if the answers can be corrected
d.
if the results can be changed
 

 2. 

Where do scientists publish the results of their experiments?
a.
in letters to friends
b.
on television, radio, and the Internet
c.
in academic papers, science magazines, and on the Internet
d.
in books, magazines, and comic books
 

 3. 

Which of the following is always a safety rule?
a.
Work as fast as possible.
b.
Never light a fire.
c.
Always follow your teacher’s instructions.
d.
Take shortcuts if they are not dangerous.
 

 4. 

Which is an example of a conceptual model?
a.
a model airplane
b.
a clay car in a wind tunnel
c.
a model of a galaxy forming
d.
a model of water temperatures in the oceans
 

 5. 

Which of the following is the best definition of science?
a.
the process of memorizing answers about the natural world
b.
the process of gathering knowledge about the natural world
c.
the process of reading the knowledge of the known world
d.
the process of gathering knowledge about the ancient world
 

 6. 

What is physical science mainly about?
a.
the relationship between matter and energy
b.
the relationship between matter and light
c.
the relationship between molecules and matter
d.
the relationship between light and energy
 

 7. 

What are the two main branches of physical science?
a.
chemistry and biology
c.
geology and chemistry
b.
biology and physics
d.
chemistry and physics
 

 8. 

Which of the following is a good way to analyze data?
a.
organize it into charts and graphs and do calculations if necessary
b.
check it over and then copy it
c.
put it away for a few months to see if it makes more sense later
d.
try to find some way to make it support your hypothesis
 

 9. 

At the end of an investigation, what should you do if you conclude that your results do not support your hypothesis?
a.
buy new measurement tools
b.
change the topic you are studying
c.
repeat your investigation, and then change your hypothesis if necessary
d.
repeat your investigation over and over until you get the results that support your original hypothesis
 

 10. 

What are some methods of communicating the results of scientific investigations?
a.
call the news media, hand out flyers
b.
write a scientific paper, make a presentation, create a Web site
c.
advertise the results on television and radio
d.
only reveal results to close friends and family
 

 11. 

What are three common kinds of scientific models?
a.
physical, psychological, conceptual
b.
physical, mathematical, conceptual
c.
biological, chemical, mathematical
d.
mathematical, chemical, physical
 

 12. 

What type of scientific model would be used to represent a molecule?
a.
chemical
c.
physical
b.
mathematical
d.
conceptual
 

 13. 

What type of scientific model could be used to predict the weather?
a.
chemical
c.
physical
b.
mathematical
d.
conceptual
 

 14. 

What type of scientific model would be used to describe how the planets and galaxies were formed?
a.
chemical
c.
physical
b.
psychological
d.
conceptual
 

 15. 

What is a scientific law?
a.
the final answer to a scientific question
b.
a scientific statement of how something works, not why
c.
an explanation of many experimental results and observations
d.
an explanation of hypotheses, results, and observations
 

 16. 

Why is the International System of Units important?
a.
It is based on the number 10, and is used by most scientists.
b.
It is easy to use, and scientists can keep data confidential with it.
c.
It is only used by countries competing for scientific knowledge.
d.
It helps to promote good relations among countries of the world.
 

 17. 

What kinds of scientists use their knowledge of heat, force, and chemistry to understand how rocks and soil have changed over millions of years?
a.
meteorologists
c.
biologists
b.
geochemists
d.
chemists
 

 18. 

What is the study of how energy affects matter?
a.
biology
c.
chemistry
b.
physics
d.
geology
 

 19. 

The scientific process begins with asking questions and
a.
making observations.
c.
planning experiments.
b.
reading background.
d.
answering them.
 

 20. 

Which of the following might a scientist do to communicate scientific results?
a.
tell close friends and relatives
c.
write song lyrics
b.
rely on word of mouth
d.
write a scientific paper
 

 21. 

What is the importance of the International System of Units?
a.
It is the oldest system, and the most widely used.
b.
It is the oldest system, and the most secure.
c.
It is an easy system and used by scientists all over the world.
d.
It is an easy system, and the least reliable.
 

 22. 

Often the first step in gathering scientific knowledge is
a.
taking notes.
c.
predicting answers.
b.
asking questions.
d.
good lab technique.
 

 23. 

Identify three areas of science that use physical science.
a.
cosmetology, biology, physics
c.
astrology, geology, biology
b.
physics, psychology, geology
d.
meteorology, geology, biology
 

 24. 

What is physical science?
a.
the study of rocks and soil
c.
the study of nonliving matter
b.
the study of weather
d.
the study of living matter
 

 25. 

What do we call a testable explanation based on observation?
a.
theory
c.
physical science
b.
hypothesis
d.
scientific law
 

Completion
Complete each sentence or statement.
 
 
Use the terms from the following list to complete the sentences below.
conceptual model
physical model
mathematical model
 
 

 26. 

A model of a molecule or an atom is a ____________________.
 

 
 
Use the terms from the following list to complete the sentences below.
meteorologist
biologist
geochemist
 
 

 27. 

A ____________________ uses physical science  to understand how animals get energy from food.
 

 

 28. 

A ____________________ uses physical science to understand heat, force, and chemistry of the Earth’s crust.
 

 
 
Use the terms from the following list to complete the sentences below.
hypothesis
theory
law
chemistry
 

 29. 

The statement, “gravity is the attractive force between objects,” is a scientific ____________________.
 

 

 30. 

The study of interactions of various types of matter is called ____________________.
 

 
 
Use the terms from the following list to complete the sentences below.
law
observations
energy
measurements
physical science
hypothesis
theory
data
matter
physics
 

 31. 

Physical science includes the study of ____________________ and ____________________.
 

 

 32. 

The study of matter and energy is called ____________________.
 

 

 33. 

In science, ____________________ is an explanation for a phenomenon based on observation and experimental results.
 

 

 34. 

When using scientific methods in an investigation, scientists ask questions and make ____________________.
 

 
 
Use the terms from the following list to complete the sentences below.
mass
temperature
volume
density
 

 35. 

The amount of matter in an object is its ____________________.
 

 

Short Answer
 

 36. 

Why do scientists use a single set of measurements, such as the International System of Units?
 

 37. 

What is the relationship between an experiment and a hypothesis?
 

 38. 

Theory vs. Law Ask students whether the following are laws or theories: 1. An object that is dropped falls toward the ground. 2. Gravitational force causes an attraction between two objects. 3. The universe began with a very powerful explosion.
 

 39. 

Give an example of a model used in science that is larger than the real object and an example of a model that is smaller than the real object.
 

 40. 

What is the difference between a theory and a scientific law?
 



 
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