# What is Matter - PowerPoint by paulj

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```									What is Matter?

Properties of Matter
Matter is…
 everything that has mass and volume
 made up of atoms (tiny particles)
Mass and Volume
Mass and Volume

 Mass is the amount of matter (or material)
something contains.
 Mass can be measured using a balance scale.
 The unit for mass is the gram (g).
 Try a short investigation with mass.
Mass and Volume cont’d

 Volume is   (1)the amount of space matter takes
up and (2) the amount of matter something can
contain.
 Volume can be measured (1) using a graduated
cylinder or (2) by calculating the length x width x
height.
 The unit for volume is the liter (L), milliliter (mL),
or the cubic centimeter (cm3).
 Try a short investigation with volume.
Particles
Particles – The 1st Theory

Atomic Theory of Matter (John Dalton)
1. elements are made up of tiny particles called atoms
2. atoms of the same element are identical; atoms of
different elements are different
3. atoms are not created or destroyed
4. atoms can combine to form compounds
Particles – cont’d
protons, electrons, and
neutrons
 protons and neutrons
make up the nucleus
 the number of protons
determines the element
 electrons orbit the
nucleus
Particles – cont’d
Physical Properties
Physical Properties
characteristics that are observed with the senses:

   physical state (solid, liquid or gas)
   color
   odor
   density
   melting point
   boiling point
   freezing point
   hardness
Physical Changes
changes in physical properties like…

 cutting a piece of paper
 ice melting
 boiling water
 coloring a piece of paper
 placing food coloring in water
Physical Changes

Changes in State
Kinetic Particle Theory of Matter
 matter made up of particles
 particles are in motion
 there is space between the particles
 changes in heat result in changes in particle
motion
 changes in heat result in changes in space
between particles
3 Common States of Matter
 also 3 common states of water
 solid, liquid, & gas
 also BE-condensate & plasma
Solid
 packed together but
vibrate
 definite shape
 definite volume
 usually dense
Liquid
 fairly close together
 able to move in all
directions
 no definite shape
 fill the bottom of a
container
 definite volume
Gas
 fairly close together
 able to move in all
directions and collide
   no definite shape
   expand to fill any
container
   no definite volume
   usually low density
How does energy affect changes in state?

HEAT IS ENERGY!
Kinetic Particle Lab
To observe the affects of heat on the particles
of matter.

Materials:
 3 containers
 water (cold, room temperature, & hot)
 food coloring
 timer
Lab Questions
 When you placed dye into the container filled
with _?_ water, what did you observe?
 How long did it take for the dye to completely
mix into the _?_ water?
 In which container did the water mix the
fastest?
 Using the kinetic particle theory, explain what
you observed.
Chemical Properties
Chemical Properties
characteristics that describe how matter changes or interacts
with other kinds of matter:

 paper burns
 iron rusts
 gold does not rust
 wood rots
 sodium reacts with water
Chemical Changes
changes in chemical properties like…

 always changes in the form of matter
 matter is transformed completely into different
materials
Chemical Changes cont’d

 iron turning into rust in moist air
 digesting food
 burning metals in fireworks

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