Chapter 2: Matter and Density
Purpose
Matter is described by its physical and chemical properties. Changes to matter are either physical or chemical.
Density is an important physical property of matter. Density is defined as the ratio of an object’s mass to volume
and is a function of the atoms and molecules that make up matter and how well those atoms/molecules pack or fit
together.
A and B
9/21 and 9/22
In-Class
HW Assignments
 Element Quiz (column 1)
 Chapter 2 Worksheet #1
 Chapter 2 and Density
Notes
 Chemistry Pre-Assessment
9/23 and 9/24
 Go over Ch 2 Worksheet #1  Chapter 2 Worksheet #2
 Experimental Density Lab*
 Density Lab*
9/25 and 9/28
 Element Quiz (column 2)
 Chapter 2 Review Sheet
 Go over Chapter 2
Worksheet #2
 Physical and Chemical
Properties Lab*
9/29 and 9/30
 Go over Chapter 2 Review
Sheet
 Chapter 2 and Density Test
* These labs require appropriate lab attire!!
Vocabulary
matter
phases
density
volume
mass
water displacement
element
molecule
compound
mixture
homogenous mixture
heterogeneous mixture
pure substance
physical property
chemical property
physical/chemical changes
chromatography
filtration
distillation
By the end of these Topics, you should be able to demonstrate proficiency in the following areas:
Essential Understandings
 Matter occurs as elements (pure), compounds (pure), and mixtures, which may be homogeneous
(solutions) or heterogeneous.
 Matter is classified by its chemical and physical properties.
 Physical properties refer to the condition or quality of a substance that can be observed or measured
without changing the substance’s composition.
 Important physical properties are density, conductivity, melting point, boiling point, malleability, and
ductility.
 Chemical properties refer to the ability of a substance to undergo chemical reaction and form a new
substance.
 Physical changes refer to changes in which the form of matter is altered but one substance is not
transformed into another.
 Chemical changes refer to changes in which the chemical composition of a substance is altered.
Knowledge, and Skills

Differentiate between pure substances and mixtures and between homogeneous and heterogeneous
mixtures.

Differentiate between physical and chemical properties and between physical and chemical changes.
SOL Standards
CH.2 The student will investigate and understand that the placement of elements on the periodic table is a
function of their atomic structure. The periodic table is a tool used for the investigations of
h) chemical and physical properties;