Trees

1
Trees Forests

• Grade 6 Science
• Miss Hughes

2
Focus Question

• What are the components of a forest ecosystem?

3
The Birth of a Forest
4
Forest Ecosystem

• Ecosystem a community of living and non-living
  components in relationship with each other and
  their environment.
• Producers any organism which uses energy from
  the sun to produce its own food.
• Consumers an organism which feeds on other
  organisms in an ecosystem.
• Decomposers an organism which breaks down
  material and litter.

5
The Forest Web

• In groups, discuss what makes up a forest
  ecosystem and list the living and non-living
  things in a chart like the one below
• Living things Non-living things
• (biotic) (abiotic)
• As a class, discuss the words in italics from the
  definition below
• A forest is an ecosystem consisting of living
  organisms interacting with non-loving organisms.

6
Did you come up with the same things?

• Living things Non-living things
• (biotic) (abiotic)
• plants algae rocks
• animals water
• fungus air
• bacteria soil
• dead organisms

7
Importance of Trees Forests
(air) Produce O2 Absorb CO2
(soil) Controls erosion
(soil) Enrich the soil with decaying
leaves etc.
Importance of Trees Forests
(wildlife) Homes shelter
(people) Shade wind protection
(things we get from trees) Food (nuts,
fruit) Oils Wood sap
(people) recreation