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Grade Content Book Ref
C
2a
:
Pa
int
s
&
Pi
g
me
nt
s
1 D,C Pai
nt
is
a colloid:
t
he part
icl
e s
are mixed
w i
th
par t
icl
es of
a
li
qui
d but
are not P 112
di
ssol…

Page 2

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1 B ­ A* I
gneous and
me t
amo r
phic
rocks
are
harder than
sedimentar
y rocks
Grani
te,
marbl
e and
li
mes t
one have
diff
e r
ent hardness.
Thi
s i
s becau se
:
2
Limestone is
a sedimentary rock
Marble i
s…

Page 3

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1 D,C Magma
fr
om
the
mant
le
is
less dense
than
the
crust
.
Thi
s i
s why
it
rises
thr
ough
it
.

9
2 D,C Mol
ten
rock
cool
s t
o f
orm
igneous
rock.
Thi
s f
orms
crystals
insi
de
the
rock P…

Page 4

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2 D,C Al
loys
oft
en have
proper
ti
es
that
ar
e di
ff
erent
f
rom the
me t
als
they
are
ma d e
fr
om
and P 125
t
hat
these
propert
ies
may make
the
all
oy
mo r
e useful
than
the
pure
me…

Page 5

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3 B ­ A* Human
inf
luences
on
the
compo s
it
ion
of
air
: P 133
3 Deforestation ­ l
ess
photosynt
hesi s
takes
place
Increased energy consumption
(bur
ning
of
fossi
l
fuel
s)

Population increase ­
incr
eased
demand f
or
energy
Evol
uti
on…

Page 6

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4
1





Graphs
can
show how
fast
a
react
ion
g oes
and
when i
t
stops
.
A
react
ion
that
goes f
aster
(l
i
n e
B) t
han anot
her
reaction
(l
ine
A)
has
a
st
eeper
l
ine
.
A
react
ion
ha s…

Page 7

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Custard powder, flour
and
sulfur
are
dange r
ous
explosives.
Manuf
act
urer
s
t
ake special
care
h andli
ng
these
substances






7

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