GRADE 7 2ND QTR-SOIL RESOURCES

1. REVIEW OF LESSON
● Water resources are natural resources
of water that are potentially useful as a
source of water supply (ex. Bay, river,
spring, falls, lake, streams, and ponds)

2. REVIEW OF LESSON
● Watershed is any surface area from
which runoff through tributaries
resulting from rainfall is collected and
drained through a common point.

3. GUESS THE GIBBERISH
Instructions: Read the groups of
unrelated words and decipher them
into real phrases.

4. Example: RAY IN FOUR REST
(RAINFOREST)

5. SOIL
RESOURCES
1. SOW ILL RYE
SOUR SEAS

6. WEATHERING
2. WEAR THY RING

7. TREE PLANTING
3. THREE PLANE
THING

9. Soil Resources

10. At the end of the lesson, learners will
be able to:
Identify the benefits of soil resources in terms
of agriculture.
Describe methods of conserving soil resources
wisely.
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LEARNING OBJECTIVES
Determine the formation of soil from rocks;

11. SOIL
-is the thin layer of material
covering the earth’s surface
and is formed from the
weathering of rocks.

12. SOIL
- it is made up of water, air,
and organic matter. It is where
plants rely on for water and
nutrients.

13. How is soil formed?

14. The decaying organic matter such as
dead plants, animals, fungi, and other
organisms mix with the rock
fragments or weathered rocks,
minerals, and water to form soil.

15. WEATHERING
-is the process of breaking
down rocks into tiny particles.
This process happens in two
ways: physical and chemical.

16. PHYSICAL WEATHERING
-breaks down rock without
changing the rock’s chemical
composition.

17. CHEMICAL WEATHERING
-breaks the rock into smaller
pieces and change its
chemical composition.

18. 1 PERIOD OF TIME
2 TEMPERATURE
3 RAIN
4 WIND
FACTORS AFFECTING FORMATION OF SOIL
LIVING ORGANISM
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19. DEFORESTATION
INTENSIVE FARMING
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Soil related problems
SOIL EROSION

23. What will happen to all
living things on Earth if
soil continues to lose its
nutrients?

24. Can we still get enough
food supply?

25. CONSERVATION OF SOIL
TREE PLANTING
VERMICOMPOSTING
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CROP ROTATION

26. CONSERVATION OF SOIL
ORGANIC COMPOSTING
WATERING THE SOIL
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PLANTING INDIGENOUS CROPS
USING ORGANIC FERTILIZER
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27. CROP ROTATION
-a practice of planting different
crops each harvest to reduce
the loss of nutrients from soil.

28. VERMICOMPOSTING
-a process where earthworms
feed and burrow through the
soil and their castings
(wastes) serve as fertilizer.

29. TREE PLANTING
-helps cover and hold the soil
together, protecting it from
erosion.

30. PLANTING INDIGENOUS
CROPS
-helps enhance soil fertility
and reduces the need of
commercial fertilizers.

31. WATERING THE SOIL
-nourishes the plants and
moistens the soil which
prevents erosion due to wind
activity.

32. ORGANIC COMPOSTING
-helps the soil absorb and
retain its nutrients and
moisture.

33. USING ORGANIC
FERTILIZER
-nurtures the soil with organic
matter and reduces
dependency on chemical
products.

34. Do you know other
ways to conserve our
soil resources?

35. Activity 1: Match Me!
Directions: Match the method of soil
conservation in Column A to its description in
Column B. Write only the letter of your answers
in your Science activity notebook.

36. COLUMN A COLUMN B
1. Tree planting
A. nurtures the soil with organic matter and reduces
dependency on chemical products
2. Using organic fertilizer
B. nourishes the plants and moistens the soil which
prevents erosion due to wind activity
3. Vermicomposting
C. a practice of planting different crops each
harvest to reduce the loss of nutrients from soil
4. Watering the soil
D. helps coverand holdthe soil together, protecting
it from erosion
5. Crop rotation
E. earthworms feed and burrow through the soil and
their castings (wastes) serve as fertilizer.

37. THANK
YOU!