Natural Science Lecture Notes
Mr. Freland Week of 8/22
Scientific Tools
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Beeker
Graduated Cylinder
Stop Watch
Scale
Meter Stick
Astronomers use Telescopes
Chemists use Spectroscopes
Physicists use particle accelerators
Scientific Units of Measurement (SI) Units
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Length
meter
Mass
kilogram
Time
seconds
Temperature Kelvin
Electric Current ampere
Amount
mole
Luminous
candela
m
kg
s
K
A
mol
cd
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Kilo
Mega
Giga
k
M
G
thousand
million
billion
1,000
1,000,000
1,000,000,000
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Deci
Centi
Milli
Micro
Nano
d
c
m
u
n
tenth
hundredth
thousandth
millionth
billionth
0.1
0.001
0.001
0.000001
0.000000001
Scientific Notation Examples:
10^3
1,000
10^2
100
10^1
10
10^0
1
In science we represent data in different ways
Line Graphs show continuous change.
Independent variable is on the x axis
The dependent variable is on the y axis
Line Graphs show how the experiment changes through time.
Bar Graphs are useful to compare sets of data to one another.
Pie Graphs are used to represents fractions of a whole
Precision vs. Accuracy