1. The document discusses factors that can harm soil, including soil erosion caused by deforestation, pollution from industrial and agricultural waste, and overuse of fertilizers and pesticides. 2. Soil pollution can negatively impact plants and humans by destroying nutrients in the soil and causing sickness. 3. To prevent soil harm and conserve this important resource, the document recommends proper waste disposal, planting trees, using sustainable farming practices, and reducing chemical pollution.

1. FFaaccttoorrss tthhaatt ccaann HHaarrmm tthhee ssooiill
PPrreeppaarreedd bbyy::
MMss.. SShhiirrlleeyy PP.. VVaalleerraa
GGrraaddee 33 –– SStt.. FFrraanncciiss//SStt..AAuugguussttiinnee//SStt.. MMaarriiaa GGoorreettttii

2. KKeeyy QQuueessttiioonnss
A. How is the earth’s surface change
overtime?
B. How do man’s activity impact the earth?
C. How can you take care of the soil?

3. RReevviieeww ooff tthhee ppaasstt lleessssoonn
* Layers of soil
* Kinds of soil
* Uses of soil

4. OObbjjeeccttiivveess
A. Infer how pollutant affects the soil?
B. Discuss ways on how to prevent soil
pollution
C. Practice or ways of conserving the soil .

5. PPiiccttuurree aannaallyyssiiss ooff aa ddrryy ssooiill
Questions:
1. What is the reason
why soil becomes
unhealthy and dry?
2. What are the
factors that can
harm the soil?

6. GGrroouupp SShhaarriinngg::
What do you know about pollution?
What are the causes of pollution?

7. ZZeerroo wwaassttee mmaannaaggeemmeenntt::
Home
School

8. DDeessccrriibbee tthhee ppiiccttuurreess::
Ormoc, Leyte

9. SSooiill eerroossiioonn
- Is the process wherein the soil is brought
down from high to low land by agents like
water and wind.
- It occurs often in steeper land areas, much
soil is eroded when heavy rains and
strong winds ocur.

10. SSooiill ppoolllluuttiioonn
• Is the destruction of Earth’s healthy and
productive soil by the addition of
undesirable materials.

11. GGrroouupp SShhaarriinngg::
What do you know about pollution?
What are the causes of pollution?

12. CCaauusseess ooff ssooiill ppoolllluuttiioonn
• People cut down, burn trees in the mountains
( loggers and kaingineros )
• Loggers go to mountains to cut down trees.Most of
them do not replace the trees that they cut, so
mountains become denuded.
• When mountain is denuded , there are no more roots
to absorb rainwater or to hold the soil.During heavy
rains, water rushes down and causes floods in
lowlands. The soil in the mountain is also carried down
or eroded to the low lands and deposited in rivers ,
streams , and oceans.
• Too much erosion can carry away soil that we need.

13. CCaauusseess ooff ssooiill ppoolllluuttiioonn
1.Soil becomes polluted when chemicals
and wastes from factories, hospitals , and
farms are dumped into the soil.
• These chemicals and wastes make soil
poisonous for plants , animals, and
people.

14. CCaauusseess ooff ssooiill ppoolllluuttiioonn
2. Garbage or solid wastes from homes and
wet markets, which are not disposed of
properly, make the soil polluted.

15. CCaauusseess ooff ssooiill ppoolllluuttiioonn
3. Excessive use of fertilizers and insecticides in
farming.
• Farmers often use too much fertilizer to increase
their harvest.
• To get rid of pest, farmers spray their crops with
insecticides.
• These chemicals destroy organisms that help
renew the soil.The soil becomes barren or
unproductive.

16. CCaauusseess ooff ssooiill ppoolllluuttiioonn
4.Wastes from mines.
• Metals are processed so they can be used
to make jewelry, wires coins, and other
metallic objects.
• Metal processing produces waste water
that flows into the land and rivers. The soil
where mine wastes flow is damaged.
Plants cannot grow in it.

17. EEffffeeccttss ooff ssooiill ppoolllluuttiioonn
• Soil pollution destroy plants and cause diseases to
people and animals.
1. Effects of pollution on plants
a. young seedlings decay even before they
appear above the soil surface.
b.roots decay or wither. This interferes with the
supply of water in the stems and leaves so
the plants eventually die.
c. plants will wither and die since polluted soil
interferes with the supply of nutrients needed
for plants growth and development.

18. EEffffeeccttss ooff ssooiill ppoolllluuttiioonn
2.Effects on humans and other animals
- human depend and other animals
depend on plants for food. If plants are
affected by pollution, people and other
animals can also get sick and may
eventually die.
- Soil pollution can cause famine.

19. If we want to continue enjoying abundant food ,
lumber, and other plant products, we need to take
care of our soil.
Without soil, there will be no trees and plants.
There is a need for soil conservation.
Soil conservation is caring for and using soil wisely to
prevent soil erosion and to maintain the quality of
the soil.
Soil is one of the natural resources we have.

20. SSooiill ccoonnsseerrvvaattiioonn
1. Plant trees
- we need to continue planting trees
especially along the slopes, to reduce soil
erosion.the roots of trees grow deep into
the soil; thus , the soil particles become
firmer and stronger

21. SSooiill ccoonnsseerrvvaattiioonn
2.Dispose garbage properly
- segregate
a.biodegradable(discarded food, fruits,
and vegetables)
b. non-biodegradable- garbage that may
be reused or recycled( plastic, bottles,
and cans)

22. SSooiill ccoonnsseerrvvaattiioonn
3. Use alternative planting strategies
a. Plant in alternating rows ( strip cropping)
- it gives soil natural covering.

23. SSooiill ccoonnsseerrvvaattiioonn
.
b. give the soil time to rest
- farmers do not plant crops continuously
- skip one planting season before
planting the next crop

24. SSooiill ccoonnsseerrvvaattiioonn
c. avoid planting the same crop every year
- to restore the minerals lost in the soil

25. SSooiill ccoonnsseerrvvaattiioonn
4. Help minimize chemical pollutants in soil
- join clubs of environmentalists.
- inform factory owners about the ills of
polluting soil
- give away leaflets urging the factory
owners to stop polluting the soil

26. SSooiill ccoonnsseerrvvaattiioonn
5. Avoid excessive use of chemical fertilizers
- make the soil extremely acidic or salty
- condition is harmful to plant life

27. PPaassss tthhee ppaappeerr
• Write one proposed way on how to take
care or conserve the soil.

28. KKeeyy QQuueessttiioonnss
A. How is the earth’s surface change
overtime?
B. How do man’s activity impact the earth?
C. How can you take care of the soil?

29. GGeenneerraalliizzaattiioonn
• The surface of the earth is not the same
as it was before and continues to change
overtime due to some factors.
• The features and characteristics of the soil
are affected by many natural and man-made
activities.
• The soil is an important earth’s resources
and everyone should care for it.

30. VVaalluuiinngg
• Let us help control erosion by
P_________ t_________.
• Trees that are cut down should be
r______ by planting trees. There should
be more trees in mountains. Young trees
should be properly taken care of for them
to grow big.
• Use natural resources w________

31. EEvvaalluuaattiioonn
A.Identify the following. (p.293-A)
B. Answer the following
a. In what ways do people use soil?
b. Give some ways of conserving the
soil?