Energy Flow
O: We will explain the cycling of matter and diagram food chains, webs and
pyramids.
living and non-living things interact with each other in an ecosystem.
abiotic – non-living things in an ecosystem
biotic –living things in an ecosystem
Energy enters an ecosystem as sunlight .
Energy flows through an ecosystem in a cycle.
producers - make their own food and are the source of all the energy in an
ecosystem
consumers - Cannot make their own food. They get their energy from
consuming other organisms.
herbivore – eats plants
carnivore – eats meat
omnivore – eats plants and meat
decomposers - break down waste and return the raw materials into the soil.
food chain – diagram that shows the flow of energy from one animal to
another.
first organism in a food chain is always a producer
food web - consists of many overlapping food chains to show feeding
relationships between organisms.
Organisms can be divided into trophic levels.
energy pyramid - shows the amount of energy that moves from one feeding
level to another in a food web.
The amount of energy at the producer level determines how many organisms
an ecosystem can support.
Once an organism dies, decomposers take over and break down the material it
was made of.
These nutrients are put back into the soil.
Plants then use those nutrients along with sunlight to recycle that energy back
into the food chain.
A: Energy is transferred from one organism to the next during feeding
O: We will identify producers and consumers and diagram the flow of energy
through food webs.
A: Food chains only show one energy path. A food web shows many overlapping
food chains.
O: We will diagram the flow of energy through pyramids and food webs.
A: The energy is recycled back into the environment.
O: We will organize and turn in our science binders for a quiz grade.
A: Yes, keeping a binder should help me study.
O: We will demonstrate the decrease in available energy in an ecosystem.
A: Most of the energy was used by the organism to live. Only 10% goes
to the organism who eats it.
O: We will diagram the flow of energy through living systems including food chains,
webs, and pyramids.
A: Decomposers are important for ecosystems because they return energy
to the soil and clean up waste.
O: We will diagram the flow of energy through living systems including food chains,
webs, and pyramids.
A: The sun provides energy to producers, which provide energy to primary
consumers which provide energy to secondary consumers.