Ecosystem
4th Grade
Mrs. Turk’s
Science Class
Examples of
Ecosystems
Learner Expectations
• Content Standard: 4.24 Identifies how matter and
energy do or do not cycle in a ecosystem. Describes
how matter cycles in a ecosystem (nutrients,
producers, consumers and decomposers) but energy
must always be added.
• Learning Expectations:
• The student will investigate how living things interact
with one another and with non-living elements of their
environment.
• Investigate the relationships among organisms in a
specific ecosystem.
Vocabulary
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Ch.1
system
stability
ecosystem
population
community
habitat
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decomposer
energy pyramid
consumer
niche
food web
Vocabulary
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producer
energy pyramid
climate
diversity
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climate
diversity
intertidal zone
near-shore zone
open-ocean zone
Vocabulary
Ch. 2
• succession
• reclamation
• conservation
• redesign
• preservation
In this activity you will:
• Learn how living things interact
with one another and with nonliving elements of their
environment.
• Write a paragraph using three
facts you learned from this
presentation.
What is a Population?
• A population is one species living in
a specific area.
• For example, all foxes living in an
area form a population.
• Another example, all dandelions
growing in an area form another
population.
What is a Community?
• A community is formed from all living
populations found in an area.
• All the foxes, dandelions,
grasshoppers, snakes, hawks, deer,
and skunks living in one area each
form their individual populations, but
together make up a community.
What is a Ecosystem?
• An ecosystem is formed by the
interactions between all living
and non-living things
• How do living and non-living
things interact in an
environment?
What is Ecology?
• Ecology is how living and non-living
things affect each other in their
environment.
• We have already named several
living things found in a community.
Can you name non-living things in
your community?
Non-living parts of your
community
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Buildings
Roads
Bodies of water
Automobiles
Traffic lights
How non-living and living
things affect each other
• Building more homes drives many animals
out of their natural habitats or communities.
• Littering can destroy an animals habitat.
• Air pollution from automobiles and factories
will affect the quality of life for all living
things in a community, including people.
Writing Activity
• Write a paragraph about the
effects that living and non-living
things have on each other.
Include three facts from this
presentation and one fact that
you discovered on your own.