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Life Science Review 1.2
Test Description: Scientific Methods
Instructions: Answer all questions to get your test result.
1) The students will eat lunch on time today is an example of a(n)
A
hypothesis
B
prediction
C
observation
D
question
2) When using scientific methods, scientists
A
always end with communicating results
B
can use all or some of the steps
C
always go in the exact order of steps
D
can only use the steps once
3) Which of the following is not a scientific method?
A
analyze results
B
draw conclusions
C
make assumptions
D
form a hypothesis
4) The closeness of a measurement to its true value is
A
precision
B
prediction
C
accuracy
D
estimate
5) Controlled experiments test
A
Only 1 variable at a time
B
Only the experimental group
C
2 variables at a time
D
Only the control group
6) Hypothesis: Water can dissolve more salt when it is hot. The amount of salt dissolved is the
A
independent or responding variable
B
dependent or responding variable
C
independent or manipulated variable
D
dependent or manipulated variable
7) Observations are not
A
information gathered with the five senses
B
accurate
C
measured, described, and recorded
D
diverse ways in which scientists study the natural world
8) A conclusion
A
shows an effect from the independent variable only
B
shows no effect from the independent variable
C
is a statement of how variables are measured
D
is a summary of results
9) 4 students ran a race in the following times: 16 s, 20 s, 22 s, and 26 s. What was the average time?
A
20 s
B
21 s
C
22 s
D
23 s
10) What variable is plotted on the x-axis of a line graph?
A
dependent or responding variable
B
dependent or manipulated variable
C
independent or responding variable
D
independent or manipulated variable
*select an answer for all questions
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