SHS

Earth Science
Module 11, Week 6 - 7
Earth Science
Grade 11/12 Module 11 Week 6 -7
First Edition, 2020

Copyright © 2020
La Union Schools Division
Region I

All rights reserved. No part of this module may be reproduced in any form without
written permission from the copyright owners.

Development Team of the Module

Author: ARLANCE SANDRA MARIE M. GARCIA, TII

Editor: SDO La Union, Learning Resource Quality Assurance Team

Illustrator: Ernesto F. Ramos Jr., P II

Management Team:

ATTY. Donato D. Balderas, Jr.

Schools Division Superintendent

Vivian Luz S. Pagatpatan, PhD

Assistant Schools Division Superintendent
German E. Flora, PhD, CID Chief

Virgilio C. Boado, PhD, EPS in Charge of LRMS

Rominel S. Sobremonte, EdD, EPS in Charge of Science
Michael Jason D. Morales, PDO II
Claire P. Toluyen, Librarian II
 Earth Science
Module 11 - Week 6 - 7
 Target
Humans continuously makes life easier with the
development of better technologies, transportations, communication in the
click of a finger and a lot more. However, the development of higher technology
necessitates the use of natural resources. Couple this with a culture of
consumerism that has become similar to an infection amongst today’s
populace, an increase in the demand and production of higher technology
manufactured goods causes greater abuse of natural resources. Such
processes as well as the daily living activities of humans generate waste and
additional pollutants of the environment. Humans therefore have become the
largest contributor to the degradation of the environment.
In the previous lesson you were able to know more about soil sources
and the human activities that affect it. In this module will be given information
and activities to understand the impact human activities have on the
environment.
At the end of this module, you should be able to:
1. describe how people generate different types of waste (solid,
liquid, and gaseous) as they make use of various materials
and resources in everyday life (S11ES-Ii-19),
2. explain how different types of waste affect people’s health
and the environment (S11ES-Ii-j-20).

Before going on, check how much you know about this topic. Answer the pretest on
the next page in a separate sheet of paper..
 Pretest

Direction. For items 1- 6. Read the questions carefully then choose the
letter of the correct answer.

1. What are materials that have been used and are to be thrown away?
A. excess
B. reserve
C. waste
D. resource
2. Which are substances that can degrade over time?
A. hazardous
B. inorganic
C. biodegradable
D. non-biodegradable
3. What activity is ideally used to address fruit and vegetable peelings?
A. incineration
B. dumping
C. attenuation
D. composting
4. What is the unlawful method of burning trash?
A. incineration
B. dumping
C. attenuation
D. composting
5. Where is the usual site where urban trash is taken to?
A. rivers
B. compost pit
C. incinerator
D. landfill
6. What is the other term for garbage juice?
A. leachate
B. chemical
C. tonic
D. runoff
7. – 10. Enumerate 4 of the R’s of waste management.

Identify the item which does not belong to the group.

11. paper, styrocup, candy wrappers, balloons
12. wood, paper straw, hay, rubber
13. oil spill, mine tailings, coal emissions, compost
14. hospital waste, farm waste, industrial waste, household waste
15. cans, food waste, plastic bottles, paper, glass bottles
 Human Activities and their Impact
to the Environment

Jumpstart

For you to understand the lesson well, do the following activities.

Have fun and good luck!

Activity 1: Compare and Contrast

Directions: Ask someone older to help you in this activity. Together
describe the items stated in each number. Write down your
observations of the item. Compare it with the answer of the one
assisting you, preferably a grandparent, on how they remember
the same item when they were still young.
Item Your Present Grandparent’s
Observation Memories
1. Air Quality

2. Sea, Rivers and

Streams
3. Transportation

4. Communication
Devices
5. Climate Conditions

6. Nearby Hills and

Mountains
7. Waste/ Garbage

8. Electricity

9. Drinking Water
Questions:
1. Which items do you have similar descriptions?

2. Which items do you have differences in descriptions?

3. Identify each of the Items that you have a different descriptions of. Give a
reason as to why you do not have the same descriptions of the item.

Item Reason for Difference

Activity 2: Word Hunt
Directions: Search for the words below. Encircle the items you find.
F M C H M B P U R I I J H J Z Q Q R L Q
L F F W G P E A P O L L U T I O N L S B
K E K A A C A R P L A S T I C T I I R D
S Q Z T R Y Z P O G T Y Y H H F X G E I
K E H E B N B E E S D N E I D G R T C O
T L G R A C Q O E R I Z X N Y D A U O D
R B C R G K C L T U D O A I V H T Z V E
R S E O E B K X D T L L N R C R O B E A
E D M Y M G Z N O E L P O A I E Z O R O
D H Y O F P A M H Z B E E W V C O I E F
U C W C G L O T G T C L S C N Y N C F J
C T K E N P W S I T O B U Q S C E O U U
E I P A Y D Z W T O F L X Y G L S N S O
P L A N T I N G A F N V U T A E P V E D
C D H I E U T R O P H I C A T I O N Y S
F R B R M P N N O Y X S R K E C R Z Y C
D E P E N M U O D I L E P K C M K U T Q
H T M U B R B F Q M V M I N I N G M X F
I H L S R M D X S I D W A S T E H O M A
A R O E M N G X R V N G C G L Y X S A P

1. BOTTLES 10. OCEAN 19. REFUSE

2. COMPOST 11. OZONE 20. REUSE
3. EROSION 12. PAPER 21. RIVER
4. EUTROPHICATION 13. PLANTING 22. RUNOFF
5. GARBAGE 14. PLASTIC 23. SEGREGATION
6. LAND 15. POLLUTION 24. SMOG
7. LANDFILL 16. RECOVER 25. WASTE
8. LEACHATE 17. RECYCLE 26. WATER
9. MINING 18. REDUCE
Lesson 1. Waste
What is waste?
The United Nations environment program defines waste as “substance
or objects, which are disposed of or are intended to be disposed of or are
required to be disposed of by the provisions of national law”. It can also be
defined as unwanted or unusable materials which is discarded after primary
use, or is deemed worthless, defective and of no use.

It is almost human nature to toss items into trash. According to the

Ecological Solid Waste Management Bureau of the Department of
Environment and National Resources, in the Philippines 19 billion tons of
waste is estimated to be produced in a year with figures still rising annually.
Although, most of this waste is collected, only a part of it is segregated and
recovered for reuse and recycle and some for composting. Most of the bulk
goes into landfills. However, because of inadequate waste management
program in our country coupled with our irresponsibility, uncollected
garbage causes a lot of problems in our municipalities.

Activity 2.2: Waste Analysis

Directions: Below is a table of common household items. Estimate how
much material you use and throw weekly.
Waste Item Number of Items Discarded
(Weekly)
“Sando” Bag (plastic)
Plastic Bottles
Shampoo Sachet
Food Wrappers (pouch or pack)
Food Discard - vegetable and fruit
peelings, left overs, egg shells, etc.
(approximate by weight)
Cans
Paper Bags
Plastic Utensils (spoon, fork, cup)
Paper and card board boxes
Used Water (approximate by bucket)
Others (Please identify)
Activity 2.2: How I deal With Waste
Directions: Share your methods of waste management. How do you
dispose of the waste or garbage in your house hold? Who is
responsible for handling the garbage? Please include how your
barangay or municipality addresses waste management. Use 200
or more words in writing your essay.
Activity Rubrics

Category 4 3 2 1
Content Written Written Written Response lacks
response response response any
addresses essay addresses essay addresses essay comprehension
question very acceptably question of the essay
satisfactorily. question very acceptably. question.
satisfactorily.
Clarity Response Response Response lacks Response is
indicates depth indicates focus or unfocused,
and complexity simplistic or demonstrates illogical or
of thought in repetitive confused or incoherent.
answering the thoughts in conflicting
essay question. answering the thinking.
essay question.
Organization & Response is well Response is Response is Response is
Development of organized and organized and fairly organized disorganized
Ideas developed with developed with and developed, and
appropriate general presenting underdeveloped,
support to make supporting generalizations providing little
meaning clear. ideas provided without or no relevant
(reasons/genera adequate support.
l examples). support. .
Grammar, Usage, Response is free Response has 3 Response has 4- Response has 6
and from any errors. or less errors. 5 errors. or more errors.
Mechanics
200 words YES NO
 Discover

Lesson 2. Types of Waste

Solid, liquid, or gaseous by-products resulting from human biological

processes, manufacturing, materials processing, consumption of goods, or
any other human activity. This does not include the processing and storage
facilities for such waste. This does not include any latent waste released into
or present in the environment.

2.1 General Classification

A. Solid Waste
• Any garbage or refuse (Municipal Solid Waste)
• wastes in solid forms, domestic, commercial and industrial
wastes
• Examples: plastics, styrofoam containers, bottles, cans, papers,
scrap iron, and other trash

B. Liquid Waste
• Liquid waste includes sewage as well as wastewater from
industrial processes such as food and agricultural processing,
and manufacturing.
• Liquid waste can be subdivided into other waste types based on
the nature of the liquid waste and the risks it poses.
• Examples: wastewater may contain organic substances and
nutrients that are of value to agriculture or may be hazardous
due to the chemicals or pathogens it contains.

C. Gaseous Waste
• Mostly generated by human activity.
• The gaseous wastes include carbon dioxide (CO 2), methane
(CH4), chlorofluorocarbon (CFC), oxides of nitrogen (NOx), carbon
monoxide (CO) etc.

2.2 Classification Of Waste According To Their Origin

A. Municipal/ Urban Solid wastes

• Solid wastes that include household garbage, rubbish,
construction & demolition debris, sanitation residues, packaging
materials, trade refuges etc. are managed by any municipality.
B. Industrial wastes
• Liquid and solid wastes that are generated by manufacturing &
processing units of various industries like chemical, petroleum,
coal, metal gas, sanitary & paper etc.
C. Agricultural wastes
• Wastes generated from farming activities. These substances are
mostly biodegradable.
D. Fishery wastes
• Wastes generated due to fishery activities. These are extensively
found in coastal & estuarine areas.
E. Radioactive wastes
• Waste containing radioactive materials. Usually these are
byproducts of nuclear processes. Sometimes industries that are
not directly involved in nuclear activities, may also produce some
radioactive wastes, e.g. radio-isotopes, chemical sludge etc.
F. E-wastes
• Electronic wastes generated from any modern establishments.
They may be described as discarded electrical or electronic
devices. Some electronic scrap components, such as CRTs, may
contain contaminants such as Pb, Cd, Be or brominated flame
retardants.
G. Bio-medical wastes: Solid or liquid wastes including containers,
intermediate or end products generated during diagnosis, treatment &
research activities of medical sciences.

https://emb.gov.ph/wp-content/uploads/2019/08/National-Solid-Waste-Management-Status-Report-2008-2018.pdf
Fig.1 Sources of municipal solid wastes in the Philippines, 2008-2013
2.3 Classification Of Waste According To Type

A. Biodegradable waste
• Materials which can be degraded such as paper, wood, fruits and
others.

B. Non-biodegradable waste
• Items which cannot be degraded such as plastics, bottles, old
machines, cans etc.

C. Hazardous wastes
• Substances unsafe to use commercially, industrially,
agriculturally, or economically and have any of the following
properties- ignitability, corrosivity, reactivity & toxicity.

D. Non-hazardous
• Substances safe to use commercially, industrially, agriculturally,
or economically and do not have any of those properties
mentioned above. These substances usually create disposal
problems.

https://emb.gov.ph/wp-content/uploads/2019/08/National-Solid-Waste-Management-Status-Report-2008-2018.pdf
Fig.1 Composition of municipal solid wastes in the Philippines, 2008-2013
Activity 4: Waste Classification

Directions: Let us test how well you have understood our last discussion.
Categorize the following waste materials according to
general classification, origin and type.

Item General Origin Type

1. Dried leaves

2. Tin cans

3. Newspaper

4. Battery Fluid

5. Smoke while
cooking on a
fire stove

6. Needles and
syringes from
a clinic

7. Laundry
water from a
laundry shop

8. Broken
electric fan

9. Chemical
sludge from a
coal plant

10. Rice stalks

after the rice
grains have
been
harvested
 Explore

Lesson 3: How Our Trash Impacts the Environment

The waste humans generate waste has been detrimental to our
environment for quite some time now. Humans are generating too much trash
and cannot deal with it in a sustainable way. Waste that is not biodegradable
and cannot be properly be recycled is filling our oceans and landfills.

3.1 Effects of Improper Waste Disposal

A. Climate Change

• The decaying trash dumped in landfills emits methane gas.

Similarly, burning of large, open piles of trash emits hazardous
levels of carbon dioxide. Gases released during these times are
generally called greenhouse gases and contribute to the increase
of pollutants in the atmosphere. The ozone layer serves us a filter
or a barrier between the Earth and the Ultraviolet rays of the sun.
Holes and gaps form in the ozone layer due to the release of these
gases in the atmosphere, there are a larger holes or gaps in the
ozone layer. UV rays tend to come in and greater radiation and
heat reaches Earth’s surface. What happens then is that this
extra heat will be propelled up in long-wave radiation back to the
atmosphere. However, because of the greenhouse gases that are
abundant in the atmosphere, the heat is trapped. The energized
molecules of the greenhouse gases then emit energy in all
directions. So together UV radiation and greenhouse gases
increase Earth’s temperature which means global increase in
temperature or otherwise known as global warming.

B. Loss of Resources and Biodiversity

• Cement factories emit a lot of greenhouse gases. A direct by

product of heating lime stone would be carbon dioxide. When
carbon dioxide levels increase in the atmosphere, nearby surface
waters would absorb it and it turns acidic.

• Ecosystems are badly affected by waste. Marine life and

waterways become polluted. Plastic and other non – biodegradable
materials are ingested by aquatic animals. It causes them to
starve due to their inability to process the
 materials and expel it. This leads to their death. Animals have
also been recorded to get trapped in plastic.

• Litter left by humans in mountains accumulate over the years

and become dumping grounds. Animals come to forage for food
and end up eating non degradable materials.

• When rain falls upon the earth, the water droplets do not stay
where they reach the earth. Upon reaching saturation, the
ground can no longer hold additional amount of water. The
runoff or excess water then follows gravity and flows over the
surface of the earth and it can pick up soil contaminants
including petroleum, pesticides, or fertilizers. The runoff of
nitrate and phosphate into lakes, rivers and streams fertilizes
them, and causes accelerated eutrophication or enrichment of the
waters. As the algae population is stimulated to grow to
uncontrolled proportions, they can release harmful toxins which
can easily poison aquatic species. They also deplete the oxygen
in the water and in turn suffocate other aquatic creatures. The
overgrowth of algae is sometimes called red or brown tide. At
times, it becomes too overwhelming that large aquatic
ecosystems are shutdown.

• Waste dumped in landfills exposed to groundwater underflow or

to rain water. As the garbage decomposes, chemicals, toxic
materials and by-products are released with the accumulated
liquid called leachate and it gathers at the bottom of the landfill
and saturates the soil. The toxicity of the leachate depends upon
the landfill itself. Groundwater and surface water sources can be
contaminated by leachates through several methods.

a. Direct Leachate Contamination – There is a protective barrier

underneath landfills. If this barrier breaks or cracks, leachate
can then seep into the groundwater.

b. Waste Transportation Contamination - Trucks leaking

quantities of solid and hazardous wastes may leak small
quantities during transport or be involved in accidents that
cause a release of waste material into surface water.

c. Stormwater Runoff Contamination – Too much rain water can

saturate landfills. The excess water with leachates soaking
through the landfill may spill into surrounding water sources.
 d. Overpopulation of Birds - Landfills are known for drawing in large
quantities of bird species that feed on newly disposed trash
before it is buried. At landfill sites along major water bodies,
these birds can infest those bodies of water at night causing
secondary contamination from animal by-products.

• Particulate matter, also called particle pollution, is the term for a

mixture of solid particles and liquid droplets found in the air. It is
the by-product of coal energy plants. It contributes to making lakes
and streams acidic, changes the nutrient balance in coastal waters
and large river basins. It also depletes the nutrients in soil and
damages sensitive forests and farm crops. PM also affects the
diversity of ecosystems and is a major contributor to acid rain
effects. PM contributes greatly to climate change. It is also believed
that PM can add to the presence of drought and the significant
decrease of rainfall. It can also cause respiratory illnesses in a large
radius.

C. Public Health

• Exposure to mishandled waste does affect health, children being

more vulnerable to these pollutants. In fact, direct exposure can lead
to diseases through chemical exposure as the release of chemical
waste into the environment leads to chemical poisoning.

• Skin and blood infections resulting from direct contact with waste, and
from infected wounds.
Eye and respiratory infections resulting from exposure to infected
dust, especially during landfill operations.
Different diseases that results from the bites of animals feeding on the
waste. Intestinal infections that are transmitted by flies feeding on the
waste.

• Bacteria, vermin and insects can also be added to the problem that
trash causes.

• Incineration operators and others who work with waste collection

are at risk of chronic respiratory diseases, including cancers
resulting from exposure to dust and hazardous compounds.

• Accidents happen when waste is not properly disposed of. Bone and
muscle disorders resulting from the handling of heavy containers.
Infecting wounds resulting from contact with sharp objects.
 Poisoning and chemical burns resulting from contact with small
amounts of hazardous chemical waste mixed with general waste.
Burns and other injuries resulting from occupational accidents at
waste disposal sites or from methane gas explosion at landfill sites.

3.2 Improper Waste Disposal Methods

▪ Incineration- The burning of waste materials at high temperatures to

transform them into gases or residue.

▪ Landfill- A cost effective method of waste disposal that involves burying the
waste in the land.

▪ Open Dumping- A simple and inexpensive method which involves the

deliberate disposal of garbage in an open space.

▪ Ocean Dumping- Occurs when sewage, garbage, construction debris,

hazardous chemicals etc. are intentionally discarded at sea by ships,
aircrafts and other man made machines. Incineration of trash at sea is
also included in this definition.

https://www.philstar.com
Fig. 2 San Juan River in General Kalentong, Mandaluyong City
Activity 4: Picture Analysis
Directions: Examine the image below. This is Peanut. A turtle whose
picture became trending on the internet. Write your
thoughts and feelings in reaction to the picture using 200
words or more. Use the following guide questions:
1. What do you see in the photo?
2. How did you feel after seeing it?
3. Who do you think is responsible for what happened to
the turtle?
4. What can you do to avoid more incidences like what
happened to Peanut the turtle?

www.huffpost.com
Fig. 3 A Turtle Stuck in Plastic
Activity 4: Picture Analysis (Answer Sheet)
Guide Questions:
1. What do you see in the photo?
2. How did you feel after seeing it?
3. Who do you think is responsible for what happened to
the turtle?
4. What can you do to avoid more incidences like what
happened to Peanut the turtle?

_
Activity Rubrics
Rubrics 5 4 3 2
Content The slogan is The slogan is The slogan is The slogan
satisfactorily well worded acceptably lacks
well worded and coveys worded and construction
and coveys substance. coveys some and coveys little
great substance. substance.
substance.
Creativity Poster is Poster is Poster is Poster reflects
exceptionally creative & a creative & some some degree of
creative. A lot of good amount of thought was creativity.
thought & effort thought was put into
was put into it. put into it. decorating it.
Originality Exceptional use Good use of Acceptable use Slight use of
of new ideas & new ideas & of new ideas & new ideas &
originality to originality to originality to originality to
create poster – create poster – create poster – create poster –
slogan. slogan. slogan. slogan.
Neatness The output is The output is The output is The output is
extremely neat satisfactorily acceptably neat neat and has a
and free from neat and free and has few erasures.
erasures. from erasures. minimal
erasures.
 Deepen

Lesson 4. Better Waste Disposal Methods

Waste disposal can be defined as any method used to discard unwanted
substances or materials. Poor waste disposal activities engender severe
environmental problems on a location. More than just changing the way we
deal with our waste, we have to learn to develop an environmental conscience
and form an effective waste management habit.

1. Zero Waste is a set of ideologies focused on waste prevention that

encourages the goal of reducing the amount of trash that we
generate.
2. R’s of Sustainable
Development. In the
conservation of the
environment there is a core
set of activities which is
believed to effectively increase
the sustainable development.
These three R’s are Recycle,
Reuse and Reduce. However,
in the recent rise of
environmental awareness, a
total of eight R’s have been
proposed- Recycle, Reuse, Fig. 3 Word Cloud
Reduce, Refuse, Retake, Redesign, Recover and Repair.

By reducing the amount of “stuff” we obtain, we decrease the

energy needed for manufacture, transport and disposal. We also
cause less disruption to the ecosystems where the materials
originate, are transported through and are disposed. Avoid the
culture of consumerism.
The more we can reuse items and avoid single use items, the
better. Take a look at my earlier post on the humble handkerchief
vs. the throw-away tissue.
Rethink, respect and responsibility ask us to think about the
ecosystem, including the people who live around the world, and
think about any effects our actions might have.
To refuse is to avoid consuming that which we do not need. It
is similar with the idea of reducing. We can have the choice of
refusing to use disposable plastics. When we go to the market, we
 can bring reusable bags. A step like this
has been implemented in the Municipality
of Bauang, La Union to help reduce the
amount of disposable plastic wastes.
Recycling converts used materials
into reusable ones. Plastic bottles can be
recycled into planters and pots for urban
gardens.
Recover, replenish, replant and restore
all seem to convey a similar theme: trying
to leave the world as we found it for those
who come after us. We should do our best
to contribute in tree planting activities or
even just by creating a small urban garden
in our homes.
Redesign and reinvent promote
divergent/out-of-the-box thinking.
Materials can be redesigned so that their
use can be prolonged. We can redesign our
way of living so that we can actually
promote sustainable development. Like
heling farmers redesign their cropping and
planting methods.
Repair and renew might be lumped
together with the replenish group in terms
of repairing the environment for future
generations. However, they can also be
thought of as repairing or renewing an
item so that it may be reused. Oftentimes
when things break we just buy new ones.
www.sustainabilityguide.co.uk We can actually fix them so that we have
Fig. 4 Plastic Bottle Icons Explained no need to purchase another.

3. Composting refers to the decomposition of organic wastes naturally by

placing accumulated waste in a pit for a long period of time. It can
serve as organic fertilizer and can increase soil fertility.

4. Vermicomposting involves the use of earthworms

to convert organic waste into fertilizer.

www.publicdomainpictures.net
Fig 5 Vermicomposting
5. Waste Segragation or waste sorting is the process by which waste is
classified into different categories. Waste sorting can be done
manually at the household and collected through municipal or local
waste collection systems or automatically separated in a materials
recovery facilities or mechanical biological treatment systems.

https://swachhindia.ndtv.com
Fig. 3 Waste Segragation Assigned Colors

6. Biomethanation is a process by which organic material is

microbiologically converted under anaerobic conditions to
biogas. Poultry farms and similar agricultural facilities take
advantage of this method by converting animal manure and organic
wastes into usable clean fuel.

7. Sanitary Landfill involves the disposal of wastes into a landfill. The

base is equipped with a protective lining, which serves as a barrier
between wastes and ground water. Waste layers are regularly
compacted and subsequently coated with an earth layer.
 8. Material Recovery Facility (MRF) is also known as materials
reclamation facility or materials recycling facility, solid-waste
management plant that processes recyclable materials to sell to
manufacturers as raw materials for new products.

https://emb.gov.ph/wp-content/uploads/2019/08/National-Solid-Waste-Management-Status-Report-2008-2018.pdf
Fig.5 Low Cost Municipal MRF’s in the Philippines

9. Biomethanation is a process by which organic material is

microbiologically converted under anaerobic conditions to
biogas. Poultry farms and similar agricultural facilities take
advantage of this method by converting animal manure and organic
wastes into usable clean fuel.
10. Sanitary Landfill involves the disposal of wastes into a landfill. The
base is equipped with a protective lining, which serves as a barrier
between wastes and ground water. Waste layers are regularly
compacted and subsequently coated with an earth layer.
11.Plasma gasification exposes materials are to high temperatures and
converted to syngas. This can either be directly combusted or
further refined into chemicals and higher-grade fuels. The non-
organic part of the waste is converted to slag which is cooled, tightly
bound solid waste which can be a raw material for construction.
Effective waste disposal calls for concerted efforts from all. It is not a
matter that is only for the government. The actions must always begin
individually.
Activity 4: Reflection
Directions: Listen to the song, “Masdan Mo ang Kapaligiran” by Asin.
Try to recall the activity 1 in this module. Go over your answers
to that first activity. After nearly completing this module, has
your opinions changed? Write an essay using 200 or more words
in answer to the following questions.
Questions:
1. What are the signs or evidences of pollution that you have
seen or experienced personally?
2. Who is responsible for the pollution in our world?
3. What are the changes needed to save our world from
degradation?
Rubric for reflection

Criteria Points
4 3 2 1
1. Enumerate at Authenticity/ Complete incomplete incomplete
least 5 ways of but some & some & in
Complete
conserving and examples examples accurate
protecting soil are are examples
inaccurate inaccurate

2. Discuss and enumerated enumerated enumerated no

cite examples of & discussed but not but without examples
the application properly discussed argument/ enumerated
of these properly &
discussion
enumerated discussion
ways.
3. Indicate in stated & stated some stated some
your discussion discussed ways or ways or
which examples some ways or practices practices No
are the practices practices being done but without practices
being done being done in in his/her an indicated &
already in your his/her place place arguments arguments
about it
place.
Total
Activity 5: A Waste Free World: Dream Board
Directions: Knowing now that human activities create so much waste,
think of how you can be a better environmental advocate. Create
a dream board of the kind of world you would like your future
children to have. Include at least 5 ways that you can dispose of
waste more effectively. Use cutouts from old magazines or printed
materials. You may also use indigenous or recycled materials.
Create a tile for your output.
Activity Rubrics
Rubrics 5 4 3 2
Content The output The output The output The output
shows 5 ways of shows 4 ways of shows 3 ways of shows 1-2 ways
waste disposal. waste disposal. waste disposal. of waste
disposal.
Creativity Output is Output is Output is Output reflects
exceptionally creative & a creative & some some degree of
creative. A lot of good amount of thought was creativity.
thought & effort thought was put into
was put into it. put into it. decorating it.
Originality Exceptional use Good use of Acceptable use Slight use of
of new ideas & new ideas & of new ideas & new ideas &
originality. originality. originality. originality.
Neatness The output is The output is The output is The output is
extremely neat satisfactorily acceptably neat neat and has a
and free from neat and free and has few erasures.
erasures. from erasures. minimal
erasures.
 Gauge
Direction: Write the letter of the matching answer.

1. Process by which wastes are A. Biodegradable

made into new products and B. Composting
materials C. Fauna
2. The byproduct of gasification D. Flora
which can be used as E. Greenhouse gases
construction material F. Leachate
3. The toxic air-polluting gas G. Non-biodegradable
that causes acid rain H. Ozone
4. The method of using worms I. Partition
for breaking down waste J. Recycling
5. Term applied to wastes that K. Refuse
break down into harmless L. Reusing
substances when exposed to M. Segregation
the environment N. Slag
6. The layer of the atmosphere O. Smog
thought to be breaking down P. Vermicomposting
because of air pollution Q. Waste
7. A collective term for animals R. O2
in the environment S. O3
8. The used materials that are T. Incineration
to be discarded U. Green Movement
9. The accumulated liquid from
garbage
10. The method of separating
waste into different elements
insects
11. The collective term for plants
12. The formula for ozone
 13. The term for materials that
do not break down even after
exposed to the environment
for a long time
14. The term used in burning up
wastes
15. The term for conscientious
movement for caring for
mother earth

✓ What Did I Learn?

POINTS
Expert Advanc Interme Novice
Content
ed diate
5 4 3 2

1. Defined waste

2. Discussed the
classifications of waste
3. Described the impacts
4. Organized and presented
ways of effective waste
disposal
Total
16 – 20 Excellent
13 – 16 Very Good
9 – 12 Good
0 – 8 Poor