2. Matter
Matter: Anything that has mass and volume.
(Weights, the Earth, the Solar System, the Universe - All composed of matter)
Copyright 2014 Cognitive Learning Systems, Inc.
Slide POM6-1-2
3. Elements
Matter: Anything that has mass and volume.
!
Elements: The 118 different forms of matter known. (All elements are matter)
!
Periodic Table of the Elements: Organized arrangement of all known elements. (More about this in the eighth grade)
Copyright 2014 Cognitive Learning Systems, Inc.
Slide POM6-1-3
4. Slide POM6-1-4
Relationships of Matter
Molecules
Matter
Compounds
Elements
Atoms
Matter: Anything that has mass and volume.
!
Subatomic
Particles
Elements: The 118 different forms of matter
known. (All elements are matter)
!
Atom: The smallest unit of an individual
element. (All atoms are elements)
!
Molecule: Particle containing two or more
atoms.
!
Compound: Molecules that contain two or more
different atoms.
Subatomic Particles: The small particles that
make up an atom and determine
its properties. (All atoms contain subatomic
particles)
Copyright 2014 Cognitive Learning Systems, Inc.
!
5. Slide POM6-1-5
The Element Oxygen
Molecule
Molecule/
Compound
Atom
Hy
O2 = Oxygen Gas
Oxygen
8 Protons
8 Neutrons
8 Electrons
Subatomic Particles
Copyright 2014 Cognitive Learning Systems, Inc.
Hydrogen
H2O = Water
6. Methods of Mass Determination
Mass is measured in grams (g)
!
1000 g = 1 kilogram
Triple Beam Balance
Copyright 2014 Cognitive Learning Systems, Inc.
Slide POM6-1-6
7. Methods of Volume Determination
67 ml - 60 ml = 7 ml
Regularly shaped mass
67 ml
60 ml
3 cm
3 cm
3 cm
Irregularly shaped mass
3 cm X 3 cm X 3 cm = 27 cm3
1 cm3 = 1 ml
27 cm3 = 27 ml
Mathematical Calculation Method
Volume Displacement Method
Copyright 2014 Cognitive Learning Systems, Inc.
Slide POM6-1-7
