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Earth- Unit 1 Review
Test Description: Unit 1 Test Review
Instructions: Answer all questions to get your test result.
1) Flammable materials, like alcohol, should never be dispensed or used near
A
an open door.
B
a sink.
C
an open flame.
D
another student.
2) If you do not understand a direction or part of a lab procedure, you should
A
try several methods until something works.
B
figure it out as you do the lab.
C
ask the instructor before proceeding.
D
skip it and go on to the next part.
3) Long hair in the laboratory must be
A
tied back or kept entirely out of the way with a hair band, hairpins, or other confining device.
B
cutshort.
C
held away from the experiment with one hand.
D
always neatly groomed.
4) After completing an experiment, all chemical wastes should be
A
disposed of according to your instructor’s directions.
B
left at your lab station for the next class.
C
dumped in the sink.
D
taken home.
5) 543 km = _____ m
A
543000
B
.543
C
5430
D
54.3
6) 12 mL = ______ L
A
1.2
B
.12
C
120
D
.012
7) 49 cg = ______ mg
A
.49
B
4.9
C
4900
D
490
8) 22 m = ____ hm
A
.22
B
220
C
.022
D
2.2
9) 1.23 x 10 ^ 4 = _______
A
1230
B
123
C
.000123
D
12300
10) 5.095 x 10 ^ -2 = _____
A
50.95
B
.05095
C
.5095
D
509.5
11) 1,201000 = ________
A
12.01 x 10 ^ -4
B
1.201 x 10 ^ -6
C
12.01 x 10 ^ 4
D
1.201 x 10 ^ 6
12) .00003728 = _______
A
3.728 x 10 ^ 5
B
3.728 x 10 ^ -5
C
3.728 x 10 ^ -3
D
3.728 x 10 ^ 3
13) What is a common set of steps that scientists use to gather information and answer questions?
A
scientific notation
B
scientific method
C
SI
D
lab safety
14) Which of the following is the second step of the scientific method?
A
Experiment
B
Conclusion
C
Hypothesize
D
Observation
15) A scientist testing the affects of a chemical on apple yeild sprays an orchard with the chemical. A second orchard does not receive the chemical. Which of the following is the independent variable in the experiment?
A
the number of apples
B
the second orchard
C
the chemical
D
the first orchard
16) A scientist testing the affects of a chemical on apple yeild sprays an orchard with the chemical. A second orchard does not receive the chemical. Which of the following is the control group?
A
Orchard 2
B
The apples
C
The chemical
D
Orchard 1
*select an answer for all questions
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