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PS Chapter 1
Test Description: Section 2
Instructions: Answer all questions to get your test result.
1) Which of the following is an example of technology?
A
mass
B
physical science
C
screwdriver
D
none of the answers
2) A ___ is a summary of many experimental results and observations.
A
hypothesis
B
theory
C
scientific law
D
test
3) Technology ___.
A
all of the anwers
B
can refer to objects used to accomplish tasks
C
is sometimes called applied science
D
applies scientific understanding to solve problems
4) ___ can help scientists to predict an observation that they might make in the future.
A
Matter
B
Energy
C
Data
D
Theories
5) After forming a hypothesis, you should ___.
A
analyze the results
B
draw conclusions
C
ask a question
D
test your hypothesis
6) Scientists usually state ___ in an If then format.
A
laws
B
predictions
C
conclusions
D
theories
7) During the tests of Proteus, engineers changed only the flapping rate. The flapping rate is an example of a ___.
A
variable
B
controlled factor
C
standard
D
control group
8) A controlled experiment involves ___.
A
an experimental group, a standard, and a variable
B
a control group, an experimental group, and a standard
C
a control group, an experimental group, and a variable
D
a controlled factor, a standard, and a variable
9) Scientific knowledge changes and grows due to ___.
A
asking new questions and reexamining old ones
B
all of the answers
C
the discovery of new information
D
the use of new technologies.
10) Xavier recorded his ___ of the temperature of the salt solution.
A
observation
B
scientific method
C
hypothesis
D
none of the answers
*select an answer for all questions
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