Embed Size (px)
Citation preview
Mix
ture
Ba
sic
s
Mix
ture
s a
re a
bso
lute
ly e
ve
ryw
he
re y
ou
loo
k. M
ost
th
ing
s in
na
ture
are
mix
ture
s. L
oo
k a
t ro
cks,
th
e o
ce
an
,
or
ev
en
th
e a
tmo
sph
ere
. Th
ey a
re a
ll m
ixtu
res,
an
d m
ixtu
res
are
ab
ou
t p
hy
sic
al p
rop
ert
ies,
no
t c
he
mic
al
on
es.
Th
at
sta
tem
en
t m
ea
ns
the
ind
ivid
ua
l mo
lec
ule
s e
njo
y b
ein
g n
ea
r e
ac
h o
the
r, b
ut
the
ir f
un
da
me
nta
l
ch
em
ica
l str
uc
ture
do
es
no
t c
ha
ng
e w
he
n t
he
y e
nte
r th
e m
ixtu
re. If t
he
ch
em
ica
l str
uc
ture
ch
an
ge
d, it
wo
uld
be
ca
lled
a r
ea
ctio
n.
Wh
en
yo
u s
ee
dis
tille
d w
ate
r (H
2O
), it
's a
pu
re s
ub
sta
nc
e. Th
at
me
an
s th
at
the
re a
re o
nly
wa
ter
mo
lec
ule
s
in t
he
liq
uid
. A
mix
ture
wo
uld
be
a g
lass
of
wa
ter
with
oth
er
thin
gs
dis
solv
ed
insi
de
, m
ayb
e o
ne
of
tho
se p
ow
de
rs y
ou
take
if y
ou
ge
t si
ck. Ea
ch
of
the
su
bst
an
ce
s in
th
at
gla
ss
ke
ep
s its
ow
n c
he
mic
al p
rop
ert
ies.
So
, if y
ou
ha
ve
so
me
dis
solv
ed
su
bst
an
ce
s in
wa
ter,
yo
u c
an
bo
il o
ff t
he
wa
ter
an
d s
till
ha
ve
th
ose
dis
solv
ed
su
bst
an
ce
s le
ft o
ve
r. If
yo
u
ha
ve
so
me
sa
lt (
Na
Cl)
in w
ate
r a
nd
th
en
bo
il o
ff t
he
wa
ter,
the
sa
lt r
em
ain
s in
th
e p
an
. Th
e s
alt is
left
be
ca
use
it t
ake
s
ve
ry h
igh
te
mp
era
ture
s to
me
lt s
alt (
ev
en
mo
re t
o b
oil
it).
Mix
ture
s a
re E
ve
ryw
he
re
The
re a
re a
n in
fin
ite
nu
mb
er
of m
ixtu
res.
An
yth
ing
yo
u c
an
co
mb
ine
is a
mix
ture
. Th
ink o
f e
ve
ryth
ing
yo
u
ea
t. J
ust
th
ink a
bo
ut
ho
w m
an
y c
ake
s th
ere
are
.
Ea
ch
of
tho
se c
ake
s is
ma
de
up
of
a d
iffe
ren
t m
ixtu
re
of
ing
red
ien
ts. Ev
en
th
e w
oo
d in
yo
ur
pe
nc
il is
co
nsi
de
red
a m
ixtu
re. Th
ere
is t
he
ba
sic
ce
llulo
se o
f
the
wo
od
, b
ut
the
re a
re a
lso
th
ou
san
ds
of
oth
er
co
mp
ou
nd
s in
th
at
pe
nc
il. S
olu
tio
ns
are
als
o m
ixtu
res,
bu
t a
ll o
f th
e m
ole
cu
les
are
ev
en
ly s
pre
ad
ou
t
thro
ug
h t
he
syst
em
. Th
ey a
re c
alle
d h
om
og
en
ou
s
mix
ture
s.
If y
ou
pu
t sa
nd
into
a g
lass
of
wa
ter,
it is
co
nsi
de
red
to b
e a
mix
ture
. Y
ou
ca
n a
lwa
ys
tell
a m
ixtu
re,
be
ca
use
ea
ch
of
the
su
bst
an
ce
s c
an
be
se
pa
rate
d
fro
m t
he
gro
up
in
diffe
ren
t p
hysi
ca
l wa
ys.
Yo
u c
an
alw
ays
ge
t th
e s
an
d o
ut
of
the
wa
ter
by filte
rin
g t
he
wa
ter
aw
ay. If y
ou
we
re b
usy
, yo
u c
ou
ld ju
st le
av
e
the
sa
nd
an
d w
ate
r m
ixtu
re a
lon
e f
or
a f
ew
min
ute
s.
So
me
tim
es
mix
ture
s se
pa
rate
on
th
eir o
wn
. W
he
n y
ou
co
me
ba
ck, yo
u w
ill f
ind
th
at
all
of
the
sa
nd
ha
s su
nk t
o t
he
bo
tto
m. G
rav
ity
wa
s h
elp
ing
yo
u w
ith
th
e
sep
ara
tio
n. D
on
't f
org
et
tha
t a
mix
ture
ca
n a
lso
be
ma
de
of
two
liq
uid
s. E
ve
n s
om
eth
ing
as
sim
ple
as
oil
an
d w
ate
r is
a m
ixtu
re.
Be
fore
we
div
e in
to s
olu
tio
ns,
let's
sep
ara
te s
olu
tio
ns
fro
m o
the
r ty
pe
s o
f m
ixtu
res.
So
lutio
ns
are
gro
up
s o
f
mo
lec
ule
s th
at
are
mix
ed
an
d e
ve
nly
dis
trib
ute
d in
a s
yst
em
. Sc
ien
tist
s sa
y t
ha
t so
lutio
ns
are
ho
mo
ge
no
us
syst
em
s. E
ve
ryth
ing
in a
so
lutio
n is
ev
en
ly s
pre
ad
ou
t a
nd
th
oro
ug
hly
mix
ed
. H
ete
rog
en
eo
us
mix
ture
s
ha
ve
a li
ttle
mo
re o
f o
ne
th
ing
(h
igh
er
co
nc
en
tra
tio
n)
in o
ne
pa
rt o
f th
e s
yst
em
wh
en
co
mp
are
d t
o
So
lutio
ns
an
d M
ixtu
res
Let's
co
mp
are
su
ga
r in
wa
ter
(H2O
) to
sa
nd
in w
ate
r.
Su
ga
r d
isso
lve
s a
nd
is s
pre
ad
th
rou
gh
ou
t th
e g
lass
of
wa
ter.
Th
e s
an
d s
inks
to t
he
bo
tto
m. Th
e s
ug
ar-
wa
ter
is a
ho
mo
ge
no
us
mix
ture
wh
ile t
he
sa
nd
-wa
ter
is a
he
tero
ge
ne
ou
s m
ixtu
re. B
oth
are
mix
ture
s, b
ut
on
ly
the
su
ga
r-w
ate
r c
an
als
o b
e c
alle
d a
so
lutio
n.
Ca
n a
nyth
ing
be
in a
So
lutio
n?
Pre
tty m
uc
h. So
lutio
ns
ca
n b
e s
olid
s d
isso
lve
d in
liqu
ids.
Wh
en
yo
u w
ork
with
ch
em
istr
y o
r e
ve
n c
oo
k
in y
ou
r kitc
he
n, yo
u w
ill u
sua
lly b
e d
isso
lvin
g s
olid
s
into
liq
uid
s. S
olu
tio
ns
ca
n a
lso
be
ga
ses
dis
solv
ed
in
liqu
ids,
su
ch
as
ca
rbo
na
ted
wa
ter.
Th
ere
ca
n a
lso
be
ga
ses
in o
the
r g
ase
s a
nd
liq
uid
s in
liq
uid
s. If
yo
u m
ix t
hin
gs
up
an
d t
he
y s
tay a
t a
n e
ve
n d
istr
ibu
tio
n, it is
a
solu
tio
n. Y
ou
pro
ba
bly
wo
n't f
ind
pe
op
le m
akin
g s
olid
-so
lid s
olu
tio
ns.
Th
ey u
sua
lly s
tart
off
as
solid
/ga
s/
liqu
id-liq
uid
so
lutio
ns
an
d t
he
n h
ard
en
at
roo
m t
em
pe
ratu
re.
Allo
ys
with
all
typ
es
of
me
tals
are
go
od
exa
mp
les
of
solid
so
lutio
ns
at
roo
m t
em
pe
ratu
re.
Ma
kin
g S
olu
tio
ns
A s
imp
le s
olu
tio
n is
ba
sic
ally
tw
o s
ub
sta
nc
es
tha
t a
re e
ve
nly
mix
ed
tog
eth
er.
On
e o
f th
em
is c
alle
d t
he
so
lute
an
d t
he
oth
er
is t
he
so
lve
nt.
A s
olu
te is
th
e s
ub
sta
nc
e t
o b
e d
isso
lve
d (
sug
ar)
. Th
e s
olv
en
t is
th
e o
ne
do
ing
th
e d
isso
lvin
g (
wa
ter)
. A
s a
ru
le o
f th
um
b, th
ere
is u
sua
lly m
ore
solv
en
t th
an
so
lute
. B
e p
atie
nt
with
th
e n
ext
sen
ten
ce
as
we
pu
t it a
ll
tog
eth
er.
Th
e a
mo
un
t o
f so
lute
th
at
ca
n b
e d
isso
lve
d b
y t
he
so
lve
nt
is
de
fin
ed
as
solu
bility
. Th
at's
a lo
t o
f "s
ol" w
ord
s.
Co
llo
ids
Sc
ien
ce
ha
s sp
ec
ial n
am
es
for
ev
ery
thin
g. Th
ey a
lso
ha
ve
na
me
s fo
r th
e d
iffe
ren
t ty
pe
s o
f h
om
og
en
ou
s
mix
ture
s. S
olu
tio
n is
th
e g
en
era
l te
rm u
sed
to
de
scrib
e h
om
og
en
ou
s m
ixtu
res
with
sm
all
pa
rtic
les.
Co
llo
ids
are
so
lutio
ns
with
big
ge
r p
art
icle
s. C
ollo
ids
are
usu
ally
fo
gg
y o
r m
ilky w
he
n y
ou
loo
k a
t th
em
. In
fa
ct,
milk
is a
n e
mu
lsifie
d c
ollo
id.
Yo
u m
ay a
lso
he
ar
ab
ou
t c
ollo
ids
if y
ou
stu
dy s
oil.
Wh
ile m
ilk is
an
org
an
ic c
ollo
id, so
ils c
an
be
ma
de
up
of
ino
rga
nic
co
lloid
s, s
uc
h a
s c
lay.
SO
LUTI
ON
EX
AM
PLE
Ga
s-G
as
Ga
s-Li
qu
id
Ga
s-So
lid
Liq
uid
-Liq
uid
Liq
uid
-So
lid
So
lid-S
olid
Air
Ca
rbo
n D
ioxi
de
(C
O2)
in S
od
a
Hyd
rog
en
(H
2)
in P
alla
diu
m (
Pd
) M
eta
l
Ga
solin
e
De
nta
l Fill
ing
s
Me
tal A
lloys
Su
ch
as
Ste
rlin
g S
ilve
r
1. 2.
3. 4.
Read It!
Read It!
Read It! Read It!
A solution is created when a
_____________ is dissolved in a liquid.
A. solid
B. liquid
C. gas
D. solid, liquid OR gas
The substance that dissolves
another substance is called
the _______________
A. solvent
B. solute
C. Solution
D. mixture
A mixture that looks the same
throughout is called a
A. solvent
B. Homogenous mixture
C. Heterogeneous mixture
D. solute
Distilled water is different from tap water
because:
A. Tap water is a pure substance and
distilled water is a mixture.
B. They are both homogenous mixtures.
C. Distilled water is a solution and tap
water is a pure substance.
D. Distilled water is a pure substance and
tap water is a solution.
1. 2.
3. 4.
Watch It!
Watch It!
Watch It! Watch It!
Go to the following link and watch the
Flocabulary video:
http://tinyurl.com/hbgsl5y
Answer the questions on
Task Cards 2-7 on your lab
sheet in the Watch It!
Section.
Which two types of matter are pure
substances?
A. homogeneous mixtures and elements
B. solutions and compounds
C. elements and compounds
D. mixtures and elements
Unlike an element, a(n) ________ may
be separated through a physical
process like filtration.
A. compound
B. atom
C. molecule
D. mixture
Mixtures that have the same
composition throughout are
________.
A. Heterogeneous
B. Homogeneous
C. Pure Substance
D. Elements
5. 6.
7
Watch It!
Watch It!
Watch It!
To form brass, copper and zinc combine
but do not chemically bond. Brass is a(n)
________.
A. compound
B. atom
C. molecule
D. mixture
In the lab, Gregory is using a substance
that has the same composition
throughout. He separates the substance
into a liquid and solid using a physical
process. Based on this description,
Gregory’s substance is a(n) ________.
A. compound
B. element
C. Heterogeneous mixture
D. solution
Which of the following describes a
heterogeneous mixture?
A. carbon monoxide, a toxic gas with the
chemical formula CO
B. simple syrup, a substance that has two
parts sugar to every one part of water
throughout
C. beach sand, a substance that can contain
rocks, shells, metals and other substances
distributed unevenly throughout
D. sulfur, a substance with atomic number 16
and the symbol S on the periodic table.
1.
Organize It!
Sort the cards into two main
groups: pure substances and
mixtures. Pay attention to the
subcategories as well! Make sure
your teacher checks and initials
your lab sheet.
1. 2.
3. 4.
Explore It!
Explore It!
Explore It! Explore It!
Separating Mixtures. Go to this
website: http://tinyurl.com/ondsu4n
Complete challenge one. Click on
and separate the first
mixture. Fill in your lab sheet under
the Explore It! Section while you
complete the activity. NOTICE
HOW mixtures are separated.
Complete challenge two. Separate
the second mixture. Fill in your lab
sheet under the Explore It! Section
while you complete the activity.
NOTICE HOW mixtures are
separated.
BONUS: If you have time~ separate
the third mixture. Write a summary
of how each substance is
separated out of the mixture.
1. 2.
3. 4.
Assess It!
Assess It!
Assess It! Assess It!
A pure substance that can’t be
broken down into any simpler
substances
A. compound
B. element
C. solvent
D. chemical change
E. mixture
A combination of substances
that are NOT chemically
combined
A. compound
B. element
C. solvent
D. chemical change
E. mixture
A combination of substances
that ARE chemically
combined
A. compound
B. element
C. solvent
D. chemical change
E. mixture
A substance which
dissolves another
substance
A. compound
B. element
C. solvent
D. chemical change
5. 6.
7. 8.
Assess It!
Assess It!
Assess It! Assess It!
Which of the following is a reason that
compounds are considered pure
substances?
A. They are composed of only one type of
particle.
B. The substance is made of two or more
elements that are physically
combined.
C. Different samples of any compound
have elements with different densities.
D. can be separated by physical
methods.
How is a compound different from a
mixture?
A. Compounds have two or more
components.
B. Each substance in a compound
loses its characteristic properties.
C. Compounds are commonly
found in nature.
D. Solids, liquids, and gases can form
compounds.
Which of the following is an
example of a container that
is filled with a pure substance
rather than with a mixture?
A. a tire filled with air
B. a jar filled with salt water
C. a balloon filled with helium
D. a glass of chocolate milk
What is the smallest unit of a
chemical compound that still
has the properties of that
compound?
A. A nucleus
B. A molecule
C. An element
D. An atom
1. 2.
3.
Research It!
Research It!
Research It!
Ancient Chinese Philosophers
divided matter into five
elements. What were the
original five elements? How has
our knowledge about elements
changed?
Go to this site: http://tinyurl.com/
z3rwnm6 and research colloids.
Find out what the Tyndall Effect is
and how you can use it to identify
a colloid.
What is an aerosol? Name
two examples of aerosols.
Are there any aerosols that
you use in everyday life?
1. 2.
Write It!
Write It! This morning your mom forgot
to put a coffee filter in the
coffee maker. Write an
advertisement for coffee filters
explaining why they are so
important when making
coffee.
We classify matter into
elements, compounds and
mixtures. Explain which
category oxygen and water
fit into and how these
substances are different.
1. 2.
Illustrate It!
Illustrate It!
Using colored pencils;
draw an example of an
element, a compound, a
homogeneous mixture,
and a heterogeneous
mixture.
Draw a Bohr model of an atom
of Lithium. Label the proton(s),
neutron(s) and electron(s) as
well as the nucleus and
electron shells. Label it as a
pure substance or mixture.
Pure Substances
Mixtures
Homogeneous Heterogeneous
Compounds Elements
Dry ice
Contains only
one kind of
atom or
molecule.
Colloids and
aerosols
A mixture in
which you can
see the individual
parts.
Solutions
A mixture in
which it looks the
same throughout.
Physically
combined
Chemically
combined
Name: ______________________________ Class:_____________ Date:__________
Input Stations
Explore It!
Task Card 2: Challenge One
Separating a mixture of water, sand, iron and salt. Fill out which tool you
choose at each step and what it does to separate out a substance.
Step 1: I used the _________________ to remove the ____________ from the
solution.
Step 2: I used the _________________ as the first step to separate the
__________ and the _________________.
Step 3: I used the _____________________ to separate the ______________ from
the __________________________.
Step 4: I used the ____________________ to separate the __________________
and ______________.
Task Card 3: Challenge Two
Separating a mixture of lentils, pepper and salt. Fill out which tool you
choose at each step and what it does to separate out each substance.
Step 1: I used the ________________.
Step 2: Next I used the _______________ to remove the ____________.
Step 3: Then I used the ________________ to remove the __________________.
Step 4: Lastly I used the _______________ to separate the ________________
and ____________________.
Task Card 4: Bonus (Challenge Three)
If you have time, complete the third challenge and write a summary of
how you separated out each substance:
___________3. ___________4.
Name: ______________________________ Class:_____________ Date:__________
Input Stations
Read It!
Watch It!
Watch the video on task card 1 and answer questions on task
cards 2-7 below:
Research It!
Task Card 1:
Task Card 2:
Task Card 3:
___________4.
___________5.
___________6.
___________7.
___________1. ___________2.
___________2.
___________3.
Output Stations:
Write It!
Output Stations
Illustrate It!
Task Card 1:
Task Card 2:
Assess It!
Organize It!
Reflection: How did you do? What did you find easy? What
mistakes did you make?
Task Card 2:
Teacher Initials:
Task Card 1:
___________1. ___________3.
___________2. ___________4.
____________5.
____________6.
____________7.
____________8.
ANSWER KEY
Task Card 2: Challenge One
Separating a mixture of water, sand, iron and salt. Fill out which
tool you choose at each step and what it does to separate out
a substance.
Step 1: I used the MAGNET to remove the IRON from the solu-
tion.
Step 2: I used the WATER as the first step to separate the SAND
and the SALT.
Step 3: I used the COFFEE FILTER to separate the SAND from the
SALT WATER.
Step 4: I used the EVAPORATION DISH to separate the SALT
and WATER.
Task Card 3: Challenge 2
Step 1 I added the water.
Step 2: I used the screen to separate the lentils from the sand
and salt water.
Step 3: I used the coffee filter to separate the sand from the
salt water.
Step 4: I used the EVAPORATION DISH to separate the SALT
and WATER.
Bonus: Use the magnet to remove the paper clips, add water
then use the screen to separate out the beads. Then use the
coffee filter to separate out the glitter.
Read It!
1. D 2. A B. 4. D
Watch It
2. C 3. D 4. B 5. C 6. D 7. D
Assess It!
1. B 2. E. 3. C 4. A 5. A 6. B 7. B 8. C
Illustrate It!
Multiple answers for Task 1
Task 2:
Write It!:
Task 1:
Include that the filter keeps the coffee grinds out; producing a
homogeneous mixture instead of a heterogenous mixture.
Task 2:
Oxygen-Element-only one kind of atom. Water-compound-
contains two different types of atoms.
Mixtures
Homogeneous Heterogeneous
Pure Substances
Elements Compounds
