Scientific Measurements
.
US Customary Units vs. The
Metric System
• In the United States
our units of
measurement is based
on the old English
units.
• For science it is much
simpler to use the
French devised units
because it is base on
increments of 10l
A_Brief_History_of_Measurement
.
• To measure how long
or how far an object is
• Volume is the amount
of space that
something occupies.
• The SI unit for volume
is cubic centimeter or
liter
• A graduated cylinder
is used to measure
volume.
Volume of a solid
• To measure the volume of
a regular solid, measure
the length x width x
height.
• Your answer will be in
cubic centimeters or cm3.
• Remember in science we
always use the metric
system.
• To measure length –use
meters.
Rectangular Prisms
• .
How to use a Graduated Cylinder
• In a graduated
cylinder, the liquid
surface curves
downward to form a
meniscus.
• To measure accurately,
read the scale at eye
level at the lowest part
of the meniscus.
Measuring_Volume
.
• Mass is the amount of
matter that an object
contains.
• An object’s mass
always stays the same
no matter where the
measurement is taken.
• Mass and weight are
not the same.
Measuring_Mass
.
• There are three different
scales used to measure
temperature.
• Fahrenheit scale – water
freezes at 320 and boils at
2120F
• Celsius (centigrade)
scale- water freezes at 00C
and boils at 1000C
• Kelvin scale – there are
no negative numbers in
the Kelvin scale. 00K is
the lowest possible
temperature.
Measuring_Temperature