2. A
Sustainable
World
through
Chemistry
• Notecard
ques9on:
In
what
ways
is
our
way
of
living
affec9ng
the
world
around
us?

3. Notecard
Ques9on
• What
three
substances
can
be
found
in
CFCs?
In
your
own
words
describe
what
CFCs
do
to
the
ozone
layer.

4. Notecard
ques9on
• In
PAIRS
classify
the
following
maGer
as
either
having
poten9al
energy,
kine9c
energy
or
both
and
state
whether
it
is
an
element,
a
compound,
a
heterogeneous
mixture,
or
a
homogeneous
mixture
(they
may
have
more
than
one
classifica9on
or
no
classifica9on):
• Electrons,
Peeled
banana,
Lemonade,
Petroleum,
A
sac
filled
with
pieces
of
wood,
Ethanol
(A
type
of
alcohol),
Salt
water,
Sand,
Potassium,
C6H12O6
+
H2O,
Brass
musical
instruments.

5. NOTECARD
QUESTION
–
In
Chemistry
what
does
the
following
statement
mean:
Once
bread
has
been
burned,
it
can
never
go
back?

6. NOTECARD
QUESTION
• In
groups
of
3:
with
phenomena
in
your
environment,
exemplify
state
changes
that
maGer
undergoes.
• Write
the
symbol
for
the
following
3
elements:
Cadmium,
Beryllium,
Potassium.

7. Laws
in
Dalton’s
Atomic
Theory
• NOTECARD
QUESTION:
• Total
mass
remains
constant
during
a
chemical
reac9on
• Constant
composi9on
• FIXED
mass
of
one
element,
the
mass
of
the
other
element
is
in
ra9os
of
small
whole
numbers.