S4L1

1
Parts of the Ecosystem

• S4L1
• Students will investigate the living and
  non-living parts of an ecosystem and explore the
  roles of producers, consumers, and decomposers.

2
Essential Question

• What are the non-living parts of the ecosystem?

3

• What is an ecosystem?
• There can be lots of ecosystems in a biome.  An
  ecosystem is all the living and non-living things
  in a certain area and how they interact.

4
Ecosystem Non-living Parts

• Non-living things
• Air
• Water
• Sunlight
• Shade
• Rocks
• Dead trees
• Mud/dirt/soil

5
What are the different types of ecosystems?

• Polar Ecosystem
• -ice covers the land
• -very little sunlight
• -temperatures are very cold
• -polar bears live there
• -bears eat and hunt animals from the ocean water

6
Desert Ecosystem

• -very warm temperatures during the day and cold
  during the night
• -very little rain
• -sandy soil
• -plants send their roots far into the ground to
  find water
• -animals hunt for food at night when it is cooler

7
Rainforest Ecosystem

• -stays warm all
• year
• -receives a lot of rain
• -many types of
• plants and animals

8
Prairie Ecosystem

• -grassy area
• -few or no trees
• -more rain than desert
• but less than forest
• -winters are cold,
• but summers are hot
• -animals eat grass and seeds

9
Essential Question

• What are the Living Parts of an Ecosystem?

10
Environment-everything that surrounds and
affects a living thing

• Trees
• Bushes
• Water
• Grass
• Plants
• Animals

11
Communities in an Ecosystem

• A community is all the living things in an
  ecosystem.
• It is made up of different
• populations.
• Populations are all the
• members of one kind of
• plant or animal.

12
Relationships in an Ecosystem
13
Vocabulary

• food chain- the path of food energy in an
  ecosystem as one living thing eats another
• food web- two or more food chains that overlap
• predator- an animal that hunts other animals for
  food
• prey- an animal that is hunted for food but other
  animals
• interdependence- relationship between living
  things where one living thing benefits from
  another

14
What are Producers?

• Producers are living things that make their own
  food.
• Plants are producers.
• They use energy from the sunlight to make food.
• When an animal eats a plant, the energy is
  transferred to the animal.

15
What are Consumers?

• Consumers are animals that get energy by eating
  plants or other animals.

16

• REVIEW
• A squirrel is an organism that is a consumer.
• A decrease in one population in a community might
  cause a decrease in a different population
  because the two populations are interdependent.
• All producers are alike because they make their
  own food.
• A terrarium is set up to model an ecosystem. The
  terrarium has a rock, a heat lamp, water, soil, a
  salamander, plants and an overhead light. The
  part that models the Sun is the heat lamp and the
  overhead light.

17
REVIEW

• All the deer in the forest make up a population.
• A bird does not benefit from eating the roots of
  a tree.
• Sunlight is a nonliving part of the ecosystem.
• A tomato is stored energy gained from sunlight.
• All living things in an ecosystem make up a
  community.

18
Review

• A tree gains the energy it needs to live from
  sunlight.
• Birds are an organism that does NOT use energy
  to make their own food.
• It is true that plants and animals depend on
  sunlight.
• The following is an idea, not an observation
  The plant might grow better outdoors.
• An ecosystem is all the living and nonliving
  things in a certain area that interact with each
  other. (This includes plants and animals).
• Two organisms depend on each other, for
  example birds feed on leeches and scraps of food
  in a crocodiles mouth and the crocodile benefits
  by having its teeth cleaned.

19
Review

• Consumers gain energy by eating producers or
  other consumers.
• The producers in a pond are the tiny plants and
  algae.
• Populations make up communities.
• Flowering plants depend on butterflies when
  butterflies carry pollen from flower to flower.
• Plants are producers.