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Unit 1: Process Skills
Test Description: Unit 1: Scientific Processes
Instructions: Answer all questions to get your test result.
1) Which of the following measurements is expressed to three significant figures?
A
0.007 m
B
7077 mg
C
0.70
D
7.30 x 10 ^-1 km
2) The symbols for units of length in order from smallest to largest are
A
m, cm, mm, km
B
km, m, cm, mm
C
mm, cm, m, km
D
km, mm, cm, m
3) Identify the control variable: Does eating breakfast help you concentrate on your test?
A
type/amount of breakfast
B
eating breakfast
C
cereal
D
concentration
4) This variable is manipulated by the scientist.
A
dependent variable; found on Y-axis
B
dependent variable; found on x-axis
C
independent variable; found on Y-axis
D
independent variable; found on X-axis
5) Convert .54 km to m.
A
5400 m
B
540 m
C
.0054 m
D
54 m
6) Convert 68 cm to m.
A
6.8 m
B
.068 m
C
.68 m
D
680 m
7) What should Cara do to make her experiment safer?
A
leave the hot plate on when she exits the laboratory
B
use bare hands to remove the test tubes
C
eat and drink during the lab
D
wear safety goggles during the experiment
8) Which tool should a scientist use when measure the volume of pepsi?
A
graduated cylinder
B
triple beam balance
C
meter stick
D
stopwatch
9) What tools are appropriate when you are measuring the speed of a mouse?
A
stopwatch and meter stick
B
clock and meter stick
C
microscope and stopwatch
D
stopwatch and clock
10) Which action is the most important to complete before beginning an experiment?
A
Read all directions.
B
Clean the workspace.
C
Gather the necessary safety equipment.
D
Keep a careful record of all observations.
*select an answer for all questions
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