This document discusses ecology and the interactions between organisms and their environment. It lists examples of predators and their prey, such as eagles preying on snakes. It defines the biosphere as the part of Earth where life exists, including biotic and abiotic factors. Abiotic factors like sunlight, water, air and soil are essential for life and examples are given. An activity is described to illustrate the role of abiotic factors like sunlight, air, water and soil in photosynthesis and respiration.

1. Welcome

2. Activity-1
Observe the given picture and list out the preys
and their predators

3. Consolidation
Predators Preys
 eagle  snake
 frog  grasshopper
 fishes  microorganisms
 snake  frog
 bird  fish
 grasshopper  snake

4. Diversity for
sustenance

5. Biosphere
• Biosphere is the part of the earth where life
exists.
• It extent to soil, atmosphere and water.
• It include biotic and abiotic factors.
• Abiotic factors are essential for life existence
• Sun, water, air, soil, rock etc are the examples
of abiotic factors

6. Examples of abiotic factors

8. Ecology
• Ecology is the study of interaction between
organisms,
• And also between the organisms and its
surroundings.
• It include different type of ecosystem,
environment protection etc.

9. Activity-2
Discuss and complete the illustration given
below
Abiotic
factors
Sunlight
photosynthesis
Air
b
Water
c
Soil
A

10. Consolidation
• A. soil- habitat for the organism and nutrients
for plants.
• B. air- used for respiration.
• C. water- inevitable for life existence

11. Follow up activity
• Prepare a table containing the abiotic and
biotic factors and the importance of abiotic
factors in life existence in your science diary.

12. Thank you