Chapter 1-1 & 1-3
1-1 Describing Matter
1-3 Particles of Matter
Start on page 18
chemistry- p 19
•
the study of the
properties of
matter and how
matter changes
chemistry
element - p 19
• a substance that cannot
be broken down into
other substances by
chemical or physical
means
elements
element
Element - pages 768-769
atom - p 19
•the smallest
particle of an
element
atoms
atom
symbol - p 20
•usually one- or twoletter set of
characters that is
used to identify an
element
symbol
compound - p 20
•a substance made of
two or more
elements chemically
combined
compound
formula - p 20
•a combination of
symbols that shows
the ratio of
elements in a
compound
formula
mixture - p 20
• two or more
substances that are
mixed together, but
not chemically
combined
mixture
mixture
physical change - p 22
• a change that alters the
form or appearance, but
does not make the
material into another
substance
physical change
chemical change - p23
•a change in
matter that
produces new
substances
chemical change
chemical reaction - p 23
•a process in which
substances
undergo chemical
change
chemical reaction
chemical bond - p 34
•the force that
holds two atoms
together
chemical bond
molecule - p 34
•a combination of
two or more atoms
that are bonded
together
molecule
matter
atom
molecule
element
O
O2
compound
ex: H20, FeO
Take out a sheet of paper
• Complete Section 1 Review Questions,
page 23, #’s 1-4 (Answers Only).
Sort your vocabulary words into
2 categories: H2O and oxygen
word bank:
chemistry
formula
element
physical change
atoms molecule
chemical change
compound
chemical reaction symbol
chemical bond
mixture
Word Sort
• Two categories- H20 and Oxygen
• Write each down on your paper in two
columns
• Place the following words in the
categories that they belong:
• chemistry, atoms, compound, symbol,
formula, molecule, chemical bond,
element
example
H 20
atoms
oxygen
atoms
Color Code
• Go back over your list and color the
words that are the same
H20
chemistry
atoms
compound
symbol
formula
molecule
chemical bond
oxygen
chemistry
element
atoms
when 02, molecule
when 02, chemical bond
Extension
• Now try sorting ALL of the 1-1 and 1-3
into these categories:
– air
– ice
– CO2
– gold
key
air
atoms
chemistry
mixture
chemical bond
compound
chemical change
molecule
gold (Au)
atoms
chemistry
element
CO2
chemistry
atoms
molecule
compound
symbol
formula
chemical bond
chemical change
chemical reaction
ice
chemistry
atoms
molecule
physical change (water to
ice)
chemical bond (H+H+O)
chemical change
chemical reaction
compound