Gr. 7 -Reg. Science-Weekly-Prototype-Plan-for-Wk 3(ok).docx

Republic of the Philippines
Department of Education
Region VII-Central Visayas
DIVISION OF CEBU PROVINCE
Weekly Prototype Plan for SCIENCE- 7
Quarter 1 , SLM/Week 3 September 12-16 , 2022
MELC: Recognize that substances are classified into elements and compounds CODE: (S7MT-Ig-h-5)
Day Monday Tuesday Wednesday Thursday Friday
Objectives
Knowledge
Skills
Attitude/Values
1. Differentiate metals
from nonmetals.
2. Locate metal and
nonmetal in the
periodic table
3. Initiates oneness in
performing the task.
1. Differentiate
macrominerals from
microminerals that are
essential to life.
2. Point out conditions and
symptoms associated with
deficient intake of each
element.
1. Describe an
indicator.
2. Prepare an
indicator
solution.
3. Initiates
oneness in
performing the
task.
1. Identify acids and
bases in the
household and the
environment.
2. Determine the
acidity and basicity
of water from
different sources.
1. Evaluate the students’
understanding through the
weekly test.
2. Follow the given
instructions for each type
of test.
3. Recognize the
significance of elements
and compounds in a
substance.
Subject Matter Elements and Compound Elements and Compound Acids and Bases (
Preparation of an
indicator)
Acids and Base
(Determining the acidity
and basicity of some
materials)
Weekly Test
References Science 7 Learner’s Material
p.44
SLM Science Module 3
Science 7 Learner’s Material
p.39-40
Science 7 Learner’s
Material p. 47-49
Science 7 Learner’s
Material p. 49-52

https://www.youtube.com/wa
tch?v=h424V0oUtSE
Periodic Table of Elements
I. Procedure
A. Preparation
(Introductory
Activity, Drill,
Review of
Past Lesson,
Motivation)
In your earlier grades, you
segregated objects
according to the materials
they are made of. Have you
ever wondered why the
manufacturer chose the
materials they did for each
item?
How are tin cans made? Are
tin cans metal?
Why are frying pans made
up of metals?
(Tin cans are made of
aluminum or other treated
metals. Frying pans are
made up of metals so heat
transfers very quickly.)
1. The teacher will inspect
the food label/wrapper
being assigned to
students.
2. The teacher will group the
students to sort the
elements and compounds
in the nutrition facts.
List down the elements and
compounds present in the
ingredients of the food label.
What are the vitamins and
minerals you took today? Is it
really important to take all of
them?
1. Checking of
materials as
assigned.
2. Giving of
precautionary
measures and
procedures.
3. Ask the student
the following
questions:
What are the foods that
taste sour? Does that
taste bitter?
Why is soap slippery?
Say: Today let us make
a colorful activity. We
prepare an indicator
solution to determine
the compounds that
taste sour and bitter.
Checking of materials
assigned.
Giving precautionary
measures in testing the
different samples using the
prepared indicator.
What was our activity
yesterday? ( Preparation of
Indicator)
Say: Let us find out if a
given household material is
acidic or basic using the
plant indicator you have
prepared in activity 1.
1. Give the students three
more minutes to scan
their notes before the start
of the exam.
2. Let them prepare one-
3.
4. half lengthwise paper to
serve as their answer
sheets.
5. Remind them to observe
silence and honesty while
taking the test.
B. Presentatio
n
-Activity
Let the students answer this
activity
1. Read and familiarize
the Macrominerals
and
Microminerals/trace
elements in the table.
Activity – Prepare Me!
“Preparation of
Indicator”
Activity – Perform Me!
Acids and Bases
1. Record your
observation in
1. Orient them on the
different instructions of the
test.

Name/S
ymbol
Nam
e/
Sym
bol
Gro
up
No.
Me
tal
Nonm
etal
Example
: O
Oxy
gen
16 √ x
Example
:Gold
Au 11 x √
1. Io
di
n
e
2. H
g
3. L
e
a
d
4. S
o
di
u
m
5. R
a
The teacher will provide a
photocopy or pamphlet of
Eleme
nt
Source Functio
n
Deficie
ncy
conditi
on
Macrominerals
Calciu
m
(C)
Milk,
cheese,
canned
fish with
bones,se
same
seeds,
green
leafy
vegetabl
es
Essenti
al to
formatio
n and
mainten
ance of
bones
and
teeth;
regulate
s nerve
transmis
sion,
muscle
contracti
on and
blood
clotting
Rickets
in
childre
n;
diseas
es of
bones
in
adults
such
as
softeni
ng of
the
bones
and
decrea
se in
bone
mass
Let the student perform
the activity
Part A. Preparation
of Indicator
In this part of
Activity 2, you will
prepare a plant
indicator that you will
use to determine if a
given sample is acidic
or basic.
Materials needed:
● 1 pc mature,
dark violet
eggplant or
camote
peel/leaves or
Mayana or
Baston ni San
Jose
● alum (tawas)
powder
● sharp knife or
peeler
column 2 or table 1
Color of indicator
and Nature of
sample.
(Note: Use your activity
notebook for your data
recording.)
Activity Perform Me!
Acids and Bases
(Determining the acidity
and basicity of some
materials)
Today, you are
going to perform another
activity this is using your
prepared indicator
yesterday. Part 1 is
determining the acidity or
basicity using your
available household
items and part 2 is
determining the acidity or
basicity of water from
different sources.
Part 1
2. Give them enough time to
finish per test item.
3. Ask them to review their
answers before submitting
them.

the Periodic Table of
Elements.
Magne
sium
(Mg)
Nuts
legumes,
cereal
grains,
dark
green
vegetabl
es,
seafood,
chocolat
e
Catalyst
in the
synthesi
s of
energy
–carrier
molecul
es;
involved
in the
synthesi
s of
proteins
and
relaxatio
n of
muscles
Fluid
loss
due to
too
much
alcohol
intake,
heart
failure
due to
spasm
s
Potassi
um
(K)
Orange
juice,
bananas
, dried
fruits,
potatoes
Maintain
s
regular
heartbe
at, water
balance
and cell
integrity;
needed
Sudde
n death
during
fasting,
poor
nerve
functio
n,
irregul
● small
casaserole or
milk can
● brown bottle
with cover
● alcohol Lamp
● tripod
Procedure:
1. Peel an
eggplant as
thin as
possible (You
may also use
the leaves of
purple camote
or the leaves
of red mayana
or Baston ni
San Jose.)
Cut the
materials into
small pieces
and place in a
small
casserole or
milk can. You
In this activity, you
will find out if a given
household material is
acidic or basic using the
plant indicator you have
prepared in Activity 2.
Materials needed:
● Plant indicator
prepared in
Activity 2
● Vinegar
● Distilled water
● Tap water
● Baking soda
● Baking powder
● Calamansi
● Other food/home
items with no
color:
(toothpaste
, shampoo, soap,
detergent, fruit
juice like buko
juice, sugar in
water, soft drink)

in nerve
transmis
sion,
carbohy
drate
and
protein
metaboli
sm
ar
heartb
eat.
Seleni
um
(Se)
Liver,
meat,
grain,
vegetabl
es
Part of
enzyme
s;
antioxid
ants
Kesha
n
diseas
e
(heart
diseas
e)
Sodiu
m
(Na)
Meat,
table
salt, salt
processe
d food
Regulat
es
amount
of body
fluids;
involve
in nerve
transmis
sion
Heada
che,
physic
al
weakn
ess,
thirst,
poor
memor
y,
may keep the
flesh of the
eggplant or
camote for
other
purposes.
2. Add about 1/3
to ½ cup tap
water to the
peel
depending on
the size of the
eggplant or
camote used.
Boil for 5
minutes. Stir
from time to
time.
3. Transfer the
mixture into a
bottle while it is
still hot. There
is no need to
filter, just
remove the
solid portion.
The mixture
● 2 plastic egg trays
or 12 small plastic
cups or glass
bottles
● 6 droppers
● 6 plastic
teaspoons
● Stirrer (may be
teaspoon, coffee
stirrer, chop stick
or drinking straw)
Procedure:
1. Place one (1)
teaspoon of each
sample in each
well of the egg
tray.
2. Add 8-10 drops
(or ½ teaspoon) of
the plant indicator
to the first sample.
Note: If the sample is
solid, wet a pinch (size of
2-3 match heads) of the
solid with about ½

appetit
e loss
Sulfur
(S)
Some
proteins
Compon
ent of
biomole
cules
and ions
Zinc
(Zn)
Liver,
shellfish,
meat,
wheat
germs
legumes
Part of
insulin
and
some
154
enzyme
s
Anemi
a,
stunted
growth
Microminerals or trace elements
Chromi
um
(Cr)
Liver,
animal
and plant
tissues
Needed
for
glucose
utilizatio
n
Loss of
insulin
efficien
cy with
age
Copper
(Cu)
Liver,
kidney,
egg yolk,
whole
grains
Helps in
the
formatio
n of
haemog
rare
may change if
left in open air
for more than 5
minutes,
4. Immediately
add a pinch (2-
3 matchstick
head size) of
alum (tawas)
powder into
the solution or
until the
solution
becomes dark
blue in color.
Stir well while
still hot. This is
now the
indicator
solution.
Note: Alum will
stabilize the extract.
The extract will be
more stable with alum
but it is
recommended that
the solution be used
teaspoon of distilled
water.
Note the color
produced. Record
your observations
in column 2 or
Table 1.
Table 1. Acidic or basic
nature of household
materials.
Sample Color of
indicato
r
Nature
of
sampl
e
Calamansi
Tap water
(water
from
faucet)

lobin;
part of
11
enzyme
s
Fluorin
e
(F)
Sea
food,
fluorinat
ed
drinking
water,
Strength
ens
bone
and
tooth
structur
e
Dental
decay
Iron
(Fe)
Liver,
meat,
green
leafy
vegetabl
es,
whole
grains,
cocoa
beans
Compon
ent of
haemog
lobin
and
myoglob
in
Anemi
a,
tiredne
ss and
apathy
Iodine
(I)
Sea food
iodized
salts
Part of
thyroxin,
regulate
s rate of
Goiter
within a few days.
Keep the extract in
the refrigerator or
cool dark place when
not in use.
Activity 4-
Remember Me!
1. pH(potential
Hydrogen) is
another
method of
determining
the acidity or
basicity of
mixtures.
2. pH was
proposed by
Danish
biochemist
S.P.L.
Sorensen
3. In pH scale it
extends from 0
Distilled
water
Vinegar
Sugar in
water
Baking
soda
Baking
powder
Soft drink
(colorless)
Coconut
water
Toothpast
e
Shampoo
Soap

energy
use
Manga
nese
(Mn)
Liver,
kidney,
wheat
germ,
legumes,
nuts
Co
factor
for a
number
of
enzyme
s
Weight
loss,
occasi
onal
dermat
itis
to 14, 7 is
neutral, less
than 7 is acidic
mixture ang
higher than 7
is basic
mixture.
4. Importance of
ph includes the
following;
a. pH and
human
body
b. Use of pH
in food and
fruit
preservatio
n
c. Control of
pH in soil
d. pH of rain
water
e. Maintainin
g pH of
personal
care
products

5. When an acid
mixes with a
base, water
and salt are
produce, the
process is
called
neutralization.
6. Everyday life
uses of
neutralization
process
includes the
following;
a. Treating
indigestion
b. Using
toothpaste
to avoid
tooth
decay
c. Treating
soil
d. Treating
factory
waste

7. An acid is a
substance
whose water
solution
exhibits the
following
properties;
turns litmus
paper red, has
a sour taste,
neutralizes
bases and
react with
active metals
to produce
hydrogen gas.
8. A base is a
substance
whose water
solution turns
litmus paper to
blue, has bitter
taste, biting
taste, has a
slippery,
soapy feeling
and

neutralizes
acids
9. Common
example of
bases are as
follows:
sodium
hydroxide,
baking soda,
detergent,
ammonia and
bleaching
powder
10.Common
examples of
acids are as
follows:
calamansi,
vinegar,
carbonated
drinks, orange,
tomato and
hydrochloric
acid.

-Analysis 1. Which elements
based on your
activity are found on
the right side?
2. Which elements
based on your
activity are found on
the left side?
3. On what side of the
periodic table are
metals?/non metals?
4. In what period does
Gold belong? What
are the
characteristics of
Gold?
5. What does malleable
mean?
6. What do you call the
elements which
belong to Group 1?
Group 2?..
1. What is a difference
between trace and macro
minerals?
2. What is the function of
macro minerals? Micro
minerals?
3. What happens to your
body if you lack calcium?
4. What happens to your
body if lack iron?
1. What are the
materials
needed in
preparing an
indicator
solution in the
activity?
2. What is the
color of the
solution?
3. How will you
know if your
prepared
indicator
solution is
effective or not?
1. What is the color of
the vinegar when
you put one drop of
indicator solution?
2. Which of the
samples changed
into a red color
when using the
indicator solution?
3. Which of the
samples turned
blue when using
the indicator
solution?
4. What is the color of
the indicator in
acid? In base?
5. How can you tell if
a water sample is
acidic or basic?
-
Abstraction
(Discussion
)
1. The teacher shall discuss
the properties of Metals
Properties of Metals &
Nonmetals
In the earlier
grades, you segregated
objects according to the
The teacher will discuss :
1. Element or minerals
needed in our body.
2. Deficiency condition
3. Functions and source of
minerals
Elements essential to Life
1. The teacher
explains the
importance of the
preparation of an
indicator for Acids
and Bases.
The teacher shall discuss:
1. The result of the
activity
Sampl
e
Color
of
Indic
ator
Nat
ure
of
sam
ple

materials they are made of.
You did this when you are
starting the habit about
5Rs-recycle, reuse,
recover, repair or reduce.
Look around you. Which
objects are made of
metals? What made you
say that they are metals?
Perhaps, you had been
identifying a metal based
on its appearance. Most of
the time, metals are shiny.
They exhibit a luster which
is the reason that they are
used as decorations. Many
metals are ductile. This
means that metals can be
drawn into wires. An
example is copper. The
ductility of copper makes it
very useful as electrical
wires. Gold is also a metal
that is ductile; however, it
is rarely used as an
electrical wire. What could
Human body contains a
variety of elements and
compounds. The most
common element in our body
are carbon, hydrogen, nitrogen
and oxygen. Water (H2O),
which contains hydrogen and
oxygen, is the most common
oxygen compound on earth. It
is very important in home, in
industry, in the laboratory, and
is biologically essential for life.
The human body is made up of
about
2
3
of water. Many foods.
Oxygen aids in the metabolism
of food. Oxygen is given to
patient with breathing difficulty.
Other elements or
minerals are needed by our
body. Minerals are substances
that perform vital bodily
functions. Some of the not
important minerals are found in
the table below.
2. Give the correct
appropriate
answer for the
analysis
questions
What are the common
uses of acids and
bases in our daily life?
Calam
ansi
Tap
water
Distille
d
water
vinega
r
Cocon
ut
water
2. importance of acid
and base in our
daily life.

be the reason for this? It is
because gold exhibits
malleability and is known
to be the most malleable
metal. Malleability refers
to the ability of a metal to
be hammered or rolled into
thin sheets without
breaking. Another example
is aluminium. It is passed
into mills and rolled thinly
to produce the aluminium
foil used to wrap food.
Most soda cans are made
of aluminium, too. Some
metals are magnetic. This
means that they are
attracted to a magnet. The
common ones are iron,
nickel and cobalt. Another
property is the electrical
and thermal conductivity.
This property allows
electricity and heat to pass
through a material.
4. Give the correct answer to
the analysis questions.

You might wonder
why some metals do not
have electrical conductivity
values when supposedly
all of them possess such
property. Notice that these
metals are the ones mostly
found at the last rows of
the periodic table.
Elements in those rows are
mostly radioactive. This
means that the element is
very unstable and exists in
a very short period of time.
The general
properties of metals are
luster, ductility,
malleability, conductivity,
and magnetic properties.
Metals exhibit these
properties in varying
degrees.
Nonmetals exhibit
the following properties;
1. Nonmetals are
brittle

2. Nonmetals are
bad conductors
of heat and
electricity(excep
t graphite)
3. Nonmetals are
non
lustrous(dull)
and cannot be
polished (except
iodine)
4. Nonmetal
maybe solid,
liquids or gases
at room
temperature.
5. Nonmetals are
neither tough
nor strong.
2. The teacher shows a short
video about metal and
nonmetal.
https://www.youtube.com/wa
tch?v=h424V0oUtSE

3. Give the correct answer to
analysis questions.
-
Application
A. Locate the following
elements in the periodic
table and classify as to
metals or non metals?
1. Aluminum (Al)
2. Iron (Fe)
3. Oxygen (O)
4. Carbon (C)
5. Mercury ( Hg)
B.List the names of three
metals you are familiar with
and use in your daily life.
A. Multiple Choice:
1. A severe, long-term lack
of calcium could result in
a condition known as
A. Osteoporosis
B. Beriberi
C. Anemia
D. Scurvy
2. All of the following are
trace minerals Except
_____ which is a
micromineral.
A. Iron
B. Iodine
C. Fluorine
D. Calcium
3. What is the deficiency
disease for iodine called?
A. Anemia
B. Goiter
C. Rickets
D. Beriberi
4. What food contains iron?
Let the students
answer this activity.
Where Do I Belong
(ACIDS and BASES)
Classify the following
products to either
ACIDS or BASES. A
table is provided for
your answers
kalamansi
juice vinegar
softdrinks
zonrox
baking soda
baking powder
toothpaste
shampoo
“Analyze and Interpret
Me”
Directions: Using the
tabulated data answer
questions found below.
Subst
ance
Rea
ction
with
the
red
litmu
s
pap
er
Rea
ction
with
the
blue
litmu
s
pap
er
Reactio
n with
phenolp
hthalein
Vineg
ar
No
reac
tion
Turn
s red
No
reaction
Soap
soluti
on
Turn
s
blue
No
reac
tion
Turns
pink
TEST 1- Multiple Choice
Directions: Choose the letter
of the correct answer.
1. All of the following will
change red litmus paper to
blue EXCEPT____
A. Limewater
B. Detergent solution
C. Ammonia in water
D. Seven-up or sprite
2. Your science teacher
asked you to test
substance X using a litmus
paper. You have noticed
that the blue litmus paper
turns to red. This
observation indicates that
the substance
is____________.
A. Acidic B. Basic
C. Salt D.
Neutral

A. Banana
B. Green leafy vegetables
C. Cheese
D. Egg
B. Answer briefly:
1. Are macro minerals
essential to man’s life?
2. How can microminerals
improve our quality of life?
3. Why should you check
first the nutrition facts of
the products that you
want to buy?
soap
muriatic
acid laundry
detergent
ACI
DS
BAS
ES
Pure
kala
mans
i juice
No
reac
tion
Turn
s
blue
No
reaction
Sham
poo
Turn
s
blue
No
reac
tion
Turns
pink
Amm
onia
water
Turn
s
blue
No
reac
tion
Turns
pink
Soft
drink
s
No
reac
tion
Turn
s red
No
reaction
Kremi
l-S in
water
Turn
s
blue
No
reac
tion
Turns
pink
Bakin
g
Soda
Soluti
on
Turn
s
blue
No
reac
tion
Turns
pink
Answer the following
questions
1. Which of the
following
3. A solution with a Ph of 11 is
first tested with
phenolphthalein and then
with litmus. What is the
color of each indicator in
this solution?
A. Phenolphthalein is
colorless and litmus is
blue.
B. Phenolphthalein is
colorless and litmus is
red.
C. Phenolphthalein is pink
and litmus is blue.
D. Phenolphthalein is pink
and litmus is red.
4. Which of the following is
most likely a basic
substance?
A. Calamansi extract
B. Detergent bar
C. Tomato
D. Vinegar
5. Which of the following
substance is an element?

substances above
turn red litmus to
blue?
2. Which of the
following
substances above
turn blue litmus to
red?
3. List all substances
that give pink color
solution with
phenolphthalein
indicator?
4. Which of the
tested substances
are acids? Which
are bases?
5. Make a
generalization on
how to determine
if a substance is
an acid or a base,
using red and
blue litmus paper
and
phenolphthalein
indicator
A. Air B. iron
C. salt D.
sugar
6. Elements play an important
role in the human body.
Which of the following is
CORRECTLY paired?
A. Chlorine: found outside
the cells which serves
as a major electrolyte
B. Oxygen: found inside
the cell essential in the
conduction of nerve
impulses
C. Phosphorus: important
in bones and teeth and
some amino acids
D. Sodium: important in
nerve conduction and
fluid balance
7. Non-metals are brittle and
are normally used as
insulators, which of the
following pairs of elements
are non-metals
A. Ca and Zn
B. K and Na

C. S and I
D. Sn and Pb
statements is true for both
elements and compounds?
A. They are
homogeneous.
B. They are the simplest
form of matter
C. They are commonly
found free in nature
D. They can be broken
down into simpler
substances.
9. An example of a strong
acid is ___
A. Laundry detergent
B. Lemon juice
C. Muriatic acid
D. Vinegar
10.An element was subjected
into flame and the acidity of
the oxide formed was
tested. Solution for this
oxide turned red litmus

paper to blue. Most likely
that element is______>
A. Chlorine
B. Nickel
C. Phosphorous
D. Silicon
11.Which of the following
elements is most likely
ductile at room
temperature?
A. Aluminium
B. Mercury
C. Nitrogen
D. Sulphur
12.Substance A and B were
tested for physical
characteristics. The results
showed that substance A
and substance B are
malleable, heat conductor
shiny and ductile. What is
the nature of substance A
and substance B?
A. Acids
B. Metals
C. Metalloids
D. Non-metals

13.Which is true about
metals?
A. They have varying
melting points
B. They are used to
prevent thermal or
electrical conductivity
C. They are good
conductors of heat.
D. They have low melting
points.
14.Jeffrey wants to find out
some distinguishing
characteristics of metals.
He used aluminum can,
iron nail, gold ring and
silver spoon. He finally
noted that these materials
display the same kind of
properties. Which of the
following describes the
characteristics of a metal
observed by Jeffrey?
A. Metals are brittle
B. Metals are insulators
C. Metals are malleable

15.A solid substance was
observed to conduct
electricity in solution. It
formed ash when burned.
The ash solution changed
red litmus paper to blue.
What kind of substance is
the solid?
A. Element
B. Compound
C. Metal
D. Non-metal
16.Which is the correct set of
properties of an acid?
A. Sour taste, corrosive,
change litmus from red
to blue
B. Sour taste, corrosive,
change litmus from
blue to red
C. Sweet taste, slippery,
change litmus from
blue to red
D. Sour taste, slippery,
change litmus from
blue to red

17.Which of the following
statements is TRUE
concerning acids and
bases?
A. Acids and bases do
not react with each
other
B. Acids mixed with bases
neutralize each other
C. Acids mixed with bases
make stronger bases
D. Acids mixed with bases
make stronger acids
18.It describes a nonmetal.
A. Brittle
B. Conductor
C. Ductile
D. Malleable
BEST describe a metal.
A. Brittle
B. Insulator

C. Malleable
D. Weak
20. What is the deficiency
disease for iodine called?
A. Anemia
B. Goiter
C. Rickets
D. Beriberi
Test II- Completion
Directions: Complete the
table.
elements Metal/N
onmetal
1. O
.2. Al
. 3. B
4. Cu
5. Cl

6. Co
7. Au
8. H
9. Fe
10.I
11.Mg
12.Ar
13.K
14.Si
15.Ag
16.Ca
17.Ra
18.Mn
19.Ne
20.P

C. Generalizati
on/
Concept
ualizatio
n
Generally metal are found on
the left side of the periodic
table while metals are found
on the right side. The
general properties of metals
are luster, ductility,
malleability, conductivity,
and magnetic properties.
Nonmetals are dull, brittle,
weak and good insulators
The difference between micro
and macro minerals, also called
elements or nutrients, is the
quantity of each needed. Micro
means extremely small, so
microelements are needed in
very small doses. The meaning of
the word macro is very large;
thus, it requires large amounts.
Microelements are also called
trace nutrients, and they are
needed in very small quantities.
Indicators are
compounds that slightly
change their structure
and also their color, in
the presence of acid or
base.
An indicator is a 'dye' that
shows a change in color
when brought in contact
with acids and bases.
This tells us whether the
substance we are testing is
an acid or base with
respect to the change of
color. Acids and bases are
important to many
chemical processes such
as treating factory waste,
baking a delicious cake, or
determining whether a lake
can support aquatic life
1. -
Evaluati
on
(Assess
ment)
Let the students complete
this table.
Elements Met
al
No
n-
met
al
Metallo
ids or
Semi-
metal
1. Alumin
um
2. Arseni
c
3. Boron
4. copper
5. chlorin
e
Make a comparison between
macrominerals from
macrominerals based on their
sources and function.
Let the student
answer the
following
questions.
1. Which of the
following is most
likely a basic
substance?
E. Calamansi
extract
F. Detergent bar
G. Tomato
H. Vinegar
Let the student answer the
following questions.
1. All of
the
followin
g will
change
red
litmus
paper to
blue
EXCEP
T____
A. Limewater
The teacher must examine the
test results using the test analysis
and determine the degree to
which each student has mastered
the lesson. If 75% of the students
had answered correctly then the
teacher shall continue to the next
module, however, if more than
30% fail then the teacher should
make interventions before going
to the next module.

6. cobalt
7. gold
8. hydrog
en
9. iron
10.iodine
11.magne
sium
12.oxyge
n
13.potass
ium
14.silicon
15.silver
2. An example of
a strong acid is
___
A.Laundry detergent
B.Lemon juice
C.Muriatic acid
D.Vinegar
3. An element
was subjected
into flame and
the acidity of
the oxide
formed was
tested.
Solution for
this oxide
turned red
litmus paper to
blue. Most
likely that
element is___.
A.Chlorine
B.Nickel
B. Detergent
solution
C. Ammonia in
water
D. Seven-up or
sprite
2. Your
science
teacher
asked
you to
test
substan
ce X
using a
litmus
paper.
You
have
noticed
that the
blue
litmus
paper
turns to
red.

C.Phosphorous
D.Silicon
4. Which of the
following
statements is
TRUE
concerning
acids and
bases?
A. Acids and
bases do not
react with each
other
B. Acids mixed
with bases
neutralize
each other
C. Acids mixed
with bases
make
stronger
bases
D. Acids mixed
with bases
make
This observation
indicates that the
substance
is____________.
A. Acidic
B. Basic
C. Salt
D. Neutral
3. A
solution
with a
Ph of 11
is first
tested
with
phenolp
hthalein
and
then
with
litmus.
What is
the
color of
each

stronger
acids
5. Which of the
following
statements
about the acid-
base character
of the solutions
is true?
A. Solution J is
more basic
than solution
L.
B. Solution K is
more acidic
than solution
L
C. Solution M is
more acidic
than solution
K
D. Solution L is
more basic
than solution
M
indicato
r in this
solution
?
A. Phenolphthal
ein is
colorless and
litmus is blue.
B. Phenolphthal
ein is
colorless and
litmus is red.
C. Phenolphthal
ein is pink
and litmus is
blue.
D. Phenolphthal
ein is pink
and litmus is
red
4. Which
is the
correct
set of
properti
es of an
acid?

A. Sour taste,
corrosive,
change litmus
from red to
blue
B. Sour taste,
corrosive,
change litmus
from blue to
red
C. Sweet taste,
slippery,
change litmus
from blue to
red
D. Sour taste,
slippery,
change litmus
from blue to
red
5. Which
of the
followin
g
stateme
nts is
TRUE

concern
ing
acids
and
bases?
A. Acids and
bases do not
react with
each other
B. Acids mixed
with bases
neutralize
each other
C. Acids mixed with
bases make
stronger bases
D. Acids mixed with
bases make
stronger acids

V-
Assignment/Ho
mework
Collect the food labels of the
food you have been eating
and bring them to the next
session.
Let the student bring the
following:
1. Violet eggplant peel
2. Camote peel or leaves
3. Red mayana leaves
4. Violet baston ni San Jose
Let the students bring
the following:
1. Lemon juice
2. Soap
3. Detergent
solution
4. Vinegar, baking
soda
Task: Finding Out the
effect of acidic mixture
like vinegar on iron.
Materials: 3 pieces small
iron nails (2.5cm long)
1 cup white
vinegar (i.e
datu puti)
3 small clear
glasses
1 cup water
2 droppers
Instructions:
1. Prepare a table
similar to the one
below, use a
separate sheet of
paper.
Answers to
questions 1
to 3 should
also be
written on
this paper.
Note:
(Optional)
The teacher shall give
assignments to his/her students
in the next lesson that they will
tackle

Take
picture of
your result
after three
days.
Set-
up
Observations
After
1 day
After 2
days
After 3
days
Nail
1
Nail
2
Nail
3
Reflection/s:
(Ex. 24 out of
60 got 75%
performance
level)
_______ of ______75%PL _______ of ______75%PL _______ of
______75%PL _______ of ______75%PL _______ of ______75%PL
Prepared by:
ARLYN M. MILLAN CRISPINA L. AMBRAD JUVIMAR E. MONTOLO
Teacher III Master Teacher 1 Education Program Supervisor-Science
Sogod National High School Calape National High School

Sogod District Daanbantayan District 1

Gr. 7 -Reg. Science-Weekly-Prototype-Plan-for-Wk 3(ok).docx

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