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