Properties of Matter II
LEQ: What characteristic properties
do substances have regardless of
their volume or mass?
What is Matter?
• Matter is anything made up of atoms (or
atomic parts)
• Matter is anything that has mass!
• Remember three states of matter are:
– Solid
– Liquid
– Gas
– Plasma is the fourth state, but we will not worry
about this!
Properties of Matter
• All matter is classified based off the following
properties:
– Mass: Measure of the amount of matter present.
– Weight: Measure of gravitational force on matter.
• MASS AND WEIGHT ARE NOT THE SAME!!!!!!!
– Mass is constant through the universe (the amount
of matter does not change), weight changes
depending on gravity.
– On Earth, my weight and mass are both 56.7 Kg…On
the moon my mass is still 56.7Kg, but my weight
would only be 9.7 Kg!
Properties of Matter (cont)
– Volume: Measurement of how much space matter
occupies.
– Density: Measurement of mass (matter) relative
to volume. D=mass/volume
– Which is more dense? Why?
Properties of Matter (cont)
• Boiling Point: The temperature where the
liquids vapor pressure equals the
environmental pressure.
– Temperature where liquid turns to gas.
• Freezing Point (Melting Point): Temperature
where liquid turns to solid (or where solid
turns to liquid)
Graph of Phase Changes (Showing
Melting Point)
Intensive vs. Extensive
• Intensive properties of matter DO NOT
depend on the amount of matter present!
– I can have any amount of the substance and these
properties stay the same!
• Extensive properties of matter Do depend on
the amount of matter present!
– The amount of matter changes the property!
Intensive vs. Extensive
• Name the following properties of matter as
INTENSIVE or EXTENSIVE.
– Boiling Point, Weight, Density, Volume, Mass,
Freezing Point, Melting Point
• Intensive: Boiling Point, Melting Point,
Freezing Point, Density (mass and volume
keep the same proportion)
• Extensive: Volume, Mass, Weight