What is Matter - PowerPoint by paulj


									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
 Volume can be measured (1) using a graduated
  cylinder or (2) by calculating the length x width x
 The unit for volume is the liter (L), milliliter (mL),
  or the cubic centimeter (cm3).
 Try a short investigation with volume.
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
                      atoms made up of
                       protons, electrons, and
                      protons and neutrons
                       make up the nucleus
                      the number of protons
                       determines the element
                      electrons orbit the
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
 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
         packed together but
         definite shape
         definite volume
         usually dense
          fairly close together
          able to move in all
          no definite shape
          fill the bottom of a
          definite volume
       fairly close together
       able to move in all
          directions and collide
         no definite shape
         expand to fill any
         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.

 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
 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
Chemical Changes cont’d

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

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