Earth- Unit 1 Review Question Preview (ID: 17524)
Unit 1 Test Review.
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Flammable materials, like alcohol, should never be dispensed or used near
a) an open door.
b) an open flame.
c) another student.
d) a sink.
If you do not understand a direction or part of a lab procedure, you should
a) figure it out as you do the lab.
b) try several methods until something works.
c) ask the instructor before proceeding.
d) skip it and go on to the next part.
Long hair in the laboratory must be
a) cutshort.
b) held away from the experiment with one hand.
c) always neatly groomed.
d) tied back or kept entirely out of the way with a hair band, hairpins, or other confining device.
After completing an experiment, all chemical wastes should be
a) taken home.
b) left at your lab station for the next class.
c) dumped in the sink.
d) disposed of according to your instructor’s directions.
543 km = _____ m
a) .543
b) 54.3
c) 5430
d) 543000
12 mL = ______ L
a) 120
b) 1.2
c) .12
d) .012
49 cg = ______ mg
a) 490
b) 4900
c) 4.9
d) .49
22 m = ____ hm
a) 2.2
b) .22
c) 220
d) .022
1.23 x 10 ^ 4 = _______
a) 123
b) 1230
c) 12300
d) .000123
5.095 x 10 ^ -2 = _____
a) .05095
b) .5095
c) 50.95
d) 509.5
1,201000 = ________
a) 1.201 x 10 ^ 6
b) 1.201 x 10 ^ -6
c) 12.01 x 10 ^ 4
d) 12.01 x 10 ^ -4
.00003728 = _______
a) 3.728 x 10 ^ 5
b) 3.728 x 10 ^ -3
c) 3.728 x 10 ^ -5
d) 3.728 x 10 ^ 3
What is a common set of steps that scientists use to gather information and answer questions?
a) scientific method
b) scientific notation
c) lab safety
d) SI
Which of the following is the second step of the scientific method?
a) Conclusion
b) Observation
c) Hypothesize
d) Experiment
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 chemical
b) the number of apples
c) the first orchard
d) the second orchard
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) Orchard 1
c) The chemical
d) The apples
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