The document contains materials for a Grade 8 science module on biogeochemical cycles, including the water cycle, carbon-oxygen cycle, and nitrogen cycle. It includes learning objectives, descriptions of each cycle, diagrams, class activities like a word game and group presentations, and an evaluation. Students will identify the processes in biogeochemical cycles, explain how materials cycle in an ecosystem, arrange words and diagrams to demonstrate each cycle, and complete a homework assignment.

1. GRADE 8
SCIENCE
MODULE 9
QUARTER 4
JESSA R. FERRER
Subject Teacher

2. PRAYER

3. CLASSROOM FEU
The game is called a Classroom
Feud.
The class will be divided into two
groups, these parts are the group 1
and the other side will be the group 2.
Question will be flash and each
member of the team can answer by
stating the sound they choose as the
team yell. Once the answer is correct,
they can continue to answer the
question unless a wrong answer is
stated therefore the other team can
steal the points

4. Do you think
decomposers is
important in the
biome?

5. WHAT IF THE
WORLD
OXYGEN
LOST IN FIVE
SECONDS?

6. WHAT IF THE WORLD OXYGEN LOST IN FIVE

7. WH

8. CYCLING OF
MATERIALS
IN THE
ECOSYSTEM
BIOGEOCHEMICAL CYCLES

9. OBJECTIVES
1
2
Identify the processes involved in the
cycling of materials in the ecosystem
such as water cycle, oxygen-carbon
dioxide cycle, and nitrogen cycle
Explain how materials cycle in an ecosystem
S8LT-IVi- 24

10. Water cycles is the continuous movement of
water through the atmosphere, land, and bodies
of water. It is also called Hydrological Cycle
Water Cycle
QUARTER 4

11. WATER CYCLE /

12. The physical change of water from liquid phase
into gaseous phase known as water vapor that
rises from the bodies of water into the
atmosphere ,
EVAPORATION
QUARTER 4

13. Which water vapor to lose its heat and turn back
to liquid water. Water vapor condenses with the
help of some particles such as dust, smoke,
sea salts and other matter that assist in cloud
formation.
CONDENSATION
QUARTER 4

14. Water or liquid that forms in the atmosphere that
falls back to earth as precipitates.
PRECIPITATION
QUARTER 4

15. TRANSPIRATION
QUARTER 4
The escaped of excess water from the plants from
the process of photosynthesis.

16. INFILTRATION
QUARTER 4
Flow of water from the surface into the
soil while run-off is the manner by which
water moves across the ground or land.

17. Water cycle infographic

18. Water cycle infographics
Precipitation
Collection Evaporation
Condensatio
n

19. Carbon –Oxygen
Cycle
Organisms consume and produce oxygen and
carbon
dioxide during the process of photosynthesis and
respiration.
These important gases
flows through the organisms and the environment
through a cyclic process called oxygen-carbon
dioxide cycle.

20. CARBON –OXYGEN

21. CARBON –OXYGEN

22. CARBON –OXYGEN CYC

23. CARBON –OXYGEN CYC

24. Repeating cycle of processes during
which nitrogen moves through both living
and non-living things: the atmosphere,
soil, water, plants, animals and bacteria
Nitrogen Cycle
In order to move through the different parts of the
cycle, nitrogen must change forms

25. NITROGEN

26. Nitrogen cycle infographic

27. World Gallery Walk and Word
Game.
the continent to where these
Vanimal belongs
Start now!
Ready?
TASK!!!
 The class will be working by group. Each member will be given
the same amount of time to choose from the gallery wall some
words that is related to the topic.
 Once the members of the team finish choosing words in the
gallery wall, teacher will present the biogeochemical cycle and
the learners will arrange themselves to show the process of
each cycle.
 Each group will give 3 minutes to finish and present their output.

28. EXIT PASS- 3. 2. 1
Three (3) Common
Biogeochemical cycles
in the ecosystem
(2) Major gases in the
atmosphere
One (1) Question you
still have in mind about
the lesson
3
2
1

29. Let’s Check your
Understanding

30. EVALUATION
Column A Column B
1. Condensation
A. Water droplets fall on the earth’s surface
because of
gravity, either in the form of rain, snow, hail, fog
or
sleet.
2. Evaporation
B. The water seeps into the ground part of the
soil where
it becomes groundwater.
3. Infiltration
C. Water from the ocean rises in the
atmosphere and
turns into water vapor.
4. Precipitation
D. Water is absorbed by the roots and is given
off in a
form of water vapor through the stomata of the
plant.
5. Surface Runoff
E. Water vapor changes to liquid phase and
form into
clouds.
6. Transpiration
F. The water that falls to the earth reaches the
ground,
moves along the surface and becomes part of a
lake,
river or ocean
I. Directions: Match column A with column B. Write your answers on a separate sheet of paper.

31. EVALUATION
II. Complete each Biogeochemical cycle diagram.
a. Directions: Complete the water cycle using the words from the box

32. EVALUATION
b. Directions: Study the diagram of Oxygen-Carbon dioxide cycle.
Answer the questions that follow.

33. EVALUATION
c. Directions: Complete the Nitrogen cycle using the words
from the box.

34. EVALUATION
Homework!!!

35. HOMEWORK

36. HOMEWORK

38. Let’s Check your
THANK YOU FOR