1. Chemistry: The study of how matter
behaves and changes
What is matter? Anything that has
mass and takes up
space (volume).

2. Physical Properties: characteristics that can be observed or measured to help identify the substance.
Examples:
solubility -ability to
dissolve in water
malleability -can be bent,
extended or shaped
ductility -metals drawn out
or hammered into thin
wire or strips
density,
boiling point
melting point
color
texture
shape
size

3. DENSITY: the amount of mass in a substance
in a specific volume (space).
Formula for density: D = M V
*Density does NOT depend on size or
quantity of the substance!
ex: 2 different sized wood pieces
would have the same density!

4. MASS: the amount of matter (stuff)
within a substance or object.
*We typically use a balance scale and
measure in milligrams or grams to
determine MASS.

5. VOLUME: the amount of space taken up by
a substance or object, regardless of its
shape.
*We typically use a graduated
cylinder and measure in mL or
L to determine volume.(or the
displacement method for
irregular objects.)

6. VOLUME OF A REGULAR OBJECT,
like a rectangular cube:
L x W x H
ex.: 5cm x 5cm x cm = 125 cm3

8. Law of Conservation of Matter:
All atoms that go into a reaction must come out of the reaction because MATTER CANNOT BE CREATED OR DESTROYED!
Atom count at END of reaction should match atom count at the BEGINNING!

9. PARTS OF A CHEMICAL REACTION:
REACTANTS: starting substances
PRODUCTS: ending substances