Matter is anything that has volume
and has mass.
Mass- A measure of the amount of
matter in an object.
Volume-The amount of space that an
object takes up.
Metric Units
Meter
Liter
Gram
Measures Length
Measures Volume
Measures Mass
m
ml or
cm3
g
L x W x H = cm3
Regular object
H2O Displacement
Irregular object
The metric system uses prefixes added to the base unit
to represent larger or smaller units. Each prefix is a
multiple of 10.
Common Length Units in
Metric System
Most Common Mass Units in
Metric System
Kilometer-km
Kilogram-kg
Meter-m
Centimeter-cm
Millimeter-mm
Gram-g
Milligram-mg
Most Common Volume
Units in Metric System
Liter-l
Milliliter-ml
centimeters
cubed-cm3
Temperature
• Temperature is a measure of the average amount of kinetic
energy of the particles in an object.
• The basic unit of temperature is Celsius or centigrade.
• Water freezes on the Celsius scale at 0° and boils at 100°.
• Temperature is measured with a thermometer.
Density
• Density is a property of matter representing
the amount of mass per unit volume. (In other
words, how much “stuff” is in an object.)
Formula
Density = mass/volume
UNITS- g/ml or g/cm3
measurement
tray
beams
riders
zero
mark
adjustment
knob
rider
pointer
The balance has three beams called rider beams. Each rider beam has
a different mass suspended from it. These masses, called riders, can
be moved left and right along the rider beams. By moving the riders,
you can determine the mass of an object placed on the measurement
tray.
pointer
zero mark
adjustment
knob
An adjustment knob is used to calibrate the balance. When no
objects are sitting on the measurement tray, and all the riders are in
their leftmost or 0 position, the pointer should be lined up with the
zero mark. If it is not lined up with the zero mark, you would need
to turn the adjustment knob until it is.
To find the mass of an object using a triple beam balance, place the
object on the measurement tray and adjust the positions of the
three riders on the rider beams until the pointer lines up with the
zero mark. The mass of the object can then be found by adding the
values indicated by the three riders.
measurement tray
Practice reading a triple beam balance by clicking here!