Natural Science Lecture Notes
Mr. Freland Week of 8/22
Scientific Tools
Beeker
Graduated Cylinder
Stop Watch
Scale
Meter Stick
Astronomers use Telescopes
Chemists use Spectroscopes
Physicists use particle accelerators
Scientific Units of Measurement (SI) Units
Length
meter
Mass
kilogram
Time
seconds
Temperature Kelvin
Electric Current ampere
Amount
mole
Luminous
candela
m
kg
s
K
A
mol
cd
Kilo
Mega
Giga
k
M
G
thousand
million
billion
1,000
1,000,000
1,000,000,000
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