Earth Science: Geology, the Environment, and the Universe

Section 2: Methods of Scientists

Methods of Scientists

1
How is 100 000 000 written in scientific notation?
A)1 x 1008
B)1 x 100 000 000
C)1 x 108
D)1 x 10-8
2
What is an example of an SI unit of area?
A)g/mL
B)cm
C)cm3
D)m2
3
How many meters are in 1 km?
A)1/1000 m
B)1000 m
C)1/100 m
D)10 m
4
What is the standard SI unit for measuring length?
A)mile
B)meter
C)foot
D)liter
5
What is the standard SI unit of weight?
A)newton
B)gram
C)pound
D)ounce
6
What part of an experiment is used to show that results are due to the condition being tested?
A)independent variable
B)hypothesis
C)dependent variable
D)control
7
How would the values in the "Percent Carbon Dioxide" column in figure below be presented in scientific notation?
Experiment 1Experiment 2
Percent
Oxygen		Percent
Carbon
Dioxide 		Percent
Nitrogen 		Growth
Rate
(mm/day) 		Percent
Oxygen		Percent
Carbon
Dioxide 		Percent
Nitrogen 		Growth
Rate
(mm/day)
10.0398.97102117815
100.0389.971121106925
200.0379.971021205935
300.0369.971221304943
400.0359.971121403944
500.0349.971021502944

A)0.03 x 103
B)3 x 102
C)3 x 10-2
D)30 x 10-3
8
What is a hypothesis?
A)A hypothesis is the answer to a scientific question.
B)A hypothesis is the first step of the scientific method.
C)A hypothesis is a suggested explanation of an observation.
D)A hypothesis is the same as identifying the problem in the scientific method.
9
Which temperature scale is the standard in SI?
A)the Kelvin scale
B)the absolute zero scale
C)the Fahrenheit scale
D)the Celsius scale
10
A __________ is a simplified version of a system.
A)model
B)theory
C)chart
D)hypothesis
11
In an experiment, the results show a conclusion contrary to the hypothesis. What does this mean?
A)The hypothesis must be reevluated.
B)The experiment was bad.
C)The analysis was incorrect.
D)The control was not done properly.
Glencoe Online Learning CenterScience HomeProduct InfoSite MapContact Us

The McGraw-Hill CompaniesGlencoe

Please read our Terms of Use and Privacy Policy before you explore our Web site. To report a technical problem with this Web site, please contact the Web Producer.