EES/EESH Metrics, Measurement and Scientific Method Review
Name____________________
Period___ Date_____
Vocabulary Be able to define all of the following terms.
GigaMegaKiloDeciCentiMilliMicroNanoBalance
Beaker
Graduated cylinder
Liter
Gram
Meter
Density
Surface tension
Calibrate
Scientific method
Hypothesis
Theory
law
Variable
Independent variable
Dependent variable
Control group
Scientific notation
Meniscus
1.
Explain why it is important to calibrate a balance before using it.
2.
Round the following mass to the nearest .01 g.
505.6949 g
3.
If the mass of an empty beaker is 120.55 g and the mass of the beaker and 40 ml of water
is 160.20 g, what is the density of the water? Don’t forget units.
4.
A student noticed that mosquitoes seemed to bother some of her friends more than others.
She begins to suspect that it may be the scented products like scented shampoo and
scented deodorant that some people are using that are attracting the mosquitoes.
a. What is her hypothesis?
b. Design an experiment to test the hypothesis.
c. What is the independent variable?
d. What is the dependent variable?
e. What is the control group?
5.
6.
Express each of the following numbers in scientific notation.
a. 35,000 _____________________
b. 702 ______________________
c. 8 _________________________
d. 0.0042 ____________________
Each of the following numbers is expressed in scientific notation. Rewrite each number
in standard form.
EXAMPLE: 3.0 x 103 = 3000
a. 2.65 x 101 = _______________________
b. 9.4 x 10-2 = ________________________
c.
5.62 x 104 = _______________________
d.
1.08 x 10-5 = _______________________
e.
6.0 x 100 = ________________________
7.
If you needed to mass a sample, what tool would you use?_______________
8.
If you needed to measure the volume of a liquid fairly accurately, what tool would you
use? _________________________________________
9.
Give the meaning of the following prefixes.
a. milli-_________________ b. micro- ______________
c. kilo__________
d. deci-_________________
f. giga-__________
g. nano-________________
Make sure you have memorized these!
e. mega-_______________
9.
Explain the difference between a hypothesis, a theory and a law.
10.
For each of the following, decide whether or not it is a hypothesis. If it is not a
hypothesis, explain why not.
a. If the population of rodents increases, the survival rate of owl chicks will increase.
b. Is the climate getting warmer?
c. Chocolate ice cream is better than vanilla ice cream.
d. Students who use flashcards daily get better grades than students who do not use
flashcards daily.
e. There is a God.
11.
Use the factor-label method to solve each of the following problems. You must use this
method and show your work. Please do not just move the decimal point or do it “in your
head” even if it is a simple problem as it is the process I want you to learn.
EXAMPLE: 250 mm = ? km
250 mm
1
x
1m
x
1000 mm
1 km = 250 km
= 0.00025 km
1000 m
1,000,000
a.
12 mg = ______________dg
b.
500 dm = ______________km
c.
8 cg = _______________mg
d.
0.04 Mm = _________________ km
e.
300 km = __________________Gm
f.
4 L = __________________mL
The following problems are required only for EESH (honors) students:
g.
50 cm/min = _______________m/sec
h.
12 g/mL = _______________mg/dL