This document discusses ecosystems and their components. It defines ecology as the study of relationships between living and non-living things in an environment. An ecosystem is described as a system of living things that interact with each other and their physical surroundings. Key abiotic factors that influence ecosystems are identified as amount of water, temperature, sunlight, and water pressure. Biotic factors include parasitism, disease, and predation. Several main ecosystems are listed such as desert, rainforest, ocean, taiga, tundra, chaparral, grassland, and temperate forest. The document emphasizes that ecosystems depend on balance between biotic and abiotic components to avoid failure.

1. EcosystemsEcosystems
Write words connected to the word
in the center.

2. “This we know- the earth does not
belong to man, man belongs to
earth. All things are connected, like
blood which connects our family.
Whatever befalls the earth befalls
the children of the earth. Man did
not weave the web of life-he is
merely the strand in it. Whatever he
does to the web, he does to
himself” -Chief Seattle

3. Guide Questions:Guide Questions:
• What strikes you the most in the quotation
we borrowed from Chief Seattle?
• How are human life and the environment
interrelated?
• How will you do your part as a strand in it?
• From the quotation, what important word
did you get? ( about the environment)
• What are the two main characters in the
quotation? (those living and nonliving)

4. What is Ecology?What is Ecology?
• Ecology is the study of
relationships between living
things and non- living things
and their environment.

5. What is an ecosystem?What is an ecosystem?
• Ecosystem is a system of living
things that interact with each
other and with the physical world.
• A Biome is a collection of related
ecosystems.

6. Main Ecosystems:Main Ecosystems:
• Desert
• Rainforest
• Ocean
• Taiga
• Tundra
• Chaparral
• Grassland
• Temperate
Forest

7. Green:Grassland Purple: Taiga Orange:Tundra
Black:Temperate Forrest Yellow:Desert
Brown:Chapparal White:Ocean

8. However……..However……..
• An ecosystem can be as large as the
Sahara Desert, or as small as a
puddle!!!
• Ecosystems are more than just the
organisms they contain.
Geography,weather,climate and
geologic factors also influence the
interactions within an ecosystem.

9. Abiotic FactorsAbiotic Factors
Are nonliving physicalAre nonliving physical
factors of an environment.factors of an environment.
 Abiotoic Factors include amount of waterAbiotoic Factors include amount of water
and oxygen, temperature, amount ofand oxygen, temperature, amount of
sunlight and water pressure.sunlight and water pressure.

10. Biotic FactorsBiotic Factors
Are the living, physicalAre the living, physical
factors of an environment.factors of an environment.
 Examples of Biotic Factors are parasitism,Examples of Biotic Factors are parasitism,
disease and predation.disease and predation.

11. YOU TRY!!!YOU TRY!!!
List three moreList three more
examples of Abioticexamples of Abiotic
Factors:Factors:

12. Fill in the table below to illustrateFill in the table below to illustrate
between the biotic and abioticbetween the biotic and abiotic
components in the ecosystemcomponents in the ecosystem
chosen by your group.chosen by your group.
Biotic
factors
Role in the
ecosystem
Abiotic
factors
Role in the
ecosystem

13. Reflection:BalanceReflection:Balance
 Ecosystems will fail if they do notEcosystems will fail if they do not
remain in balance.remain in balance.
 No community can carry moreNo community can carry more
organisms than its food, water andorganisms than its food, water and
shelter can accommodate.shelter can accommodate.

14. Evaluation: Interactive Notebook
As an organism, how do you affect and how
are you affected by the biotic and abiotic
factors of your environment?