# Chapter 1 Test

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1. A possible explanation or
answer to a question is a
hypothesis
2. A series of steps scientists follow to solve problems are
scientific methods
3. Scientists begin to
learn about the natural world by
4. Communicating the results
of an investigation allows other scientists to
review evidence
5. What do scientists do to
determine if their results support their hypothesis?
measure their evidence
6. An investigation may
continue after results are accepted if there is
new evidence.
7. What order do the steps of
a scientific method follow
They do not follow a set order
8. A controlled experiment tests
one variable at a time.
9. Scientists form a
hypothesis when they
investigate a question.
10. Which of the following is NOT a way that models can be used in
science?
to replace real things in the natural world
11. What model is used to show
objects that are too small or too large to see completely?
a physical model
12. A climate model is an
example of a
mathematical model.
13. The data in a climate model
has
many variables.
14. To learn from a model, a
scientist must
choose the right model.
15. Why is it important to have
the International System of Units?
It can be used by scientists everywhere.
16. The volume of a liquid is
often given in
liters.
17. The basic unit for mass is
the............. in the SI system.
kilogram.
18. What should you do during
any science investigation?
19. If you wanted to learn about plants and animals
that live in the ocean, you would speak to a
biological oceanographer.
20. A scientist finds a vase
that she believes is 2,000 years old. She compares its features to those of
similar vases in a museum. She is
testing a hypothesis.
21. What kind of model is a
miniature space shuttle?
a physical model
22. How is a climate model an
example of a complex mathematical model?
It has many variables that must be processed by computers.
23. Why is it important for members of the
scientific community to learn the results of an investigation?
They can review evidence to further investigate the truth.
24. If you wanted to learn about the origin,
history, and structure of the Earth, you would study
geology
25. It reduces the variables in mathematical
climate models
26. Which unit would be most appropriate for
measuring the mass of a cow?
a kilogram
27. What is an advantage of
having an International System of Units?
It provides a system that can be used only by scientists.
28. What step is the beginning
of the process that scientists use to learn more about the natural world?
29. An explanation that ties
together many hypothesis and explanations is called a(n)
theory.
30. A safety symbol that shows a picture of a bottle
reminds you to
use chemicals safely
31. To find the area of a
surface, you
multiply length times width.
32. A scientific theory
ties together many hypotheses and observations.
33. The International System of
Units allows scientists to
share data around the world.
34. Visual aids in your
textbook that alert you to use caution during science investigations are called
safety symbols.
35. What do astronomers study?
bodies in space
36. How do scientists begin to learn about the natural world?
37. What steps do scientists
use to answer questions and solve problems?
scientific methods
38. What do scientists use to
show or describe how something works?
a model
39. What do scientists find out when they draw
conclusions?
if their results support their hypotheses
40. Why are SI measurements
All scientists can use them.
41. What do scientists do after learning the results
of an investigation?
They review evidence.
42. Why do some investigations continue after the
results of the investigation are accepted?
There is new evidence.
43. What model can be used for objects that are hard
to see completely?
a physical model
44. Why must computers process
data from climate models?
The models have many variables.
45. What should you do before you start any
scientific investigation?
note safety information
46. What is the measure of how
much surface an object has?
area
 Author: mmbarton ID: 98094 Card Set: Chapter 1 Test Updated: 2011-08-23 18:23:08 Tags: Intro Earth Science Folders: Description: Earth Science Show Answers: