Energy Is Essential!
1) The Passage of Energy
•The Sun
The sun is the source of energy for all life on the planet
•Producers (Autotroph)
Producers use the sun’s energy through the process of
photosynthesis to make food.
•Consumers (Heterotroph)
Consumers eat
Producers to obtain their energy
•Decomposers (Heterotroph)
Break down dead material
Consumer Types:
•Herbivores
Eat plants
•Omnivores
Eat plants and animals
•Carnivores
Eat animals
Consumer Orders:
•1st Order (primary)
Eat plants
nd
•2
Order(secondary)
Eat animals that ate plants
rd
•3
Order (tertiary)
Eat animals that ate animals that ate plants
2) Food Chains
Illustrates the passage of food
(energy) from one organism to
another in an ecosystem
•Arrows represent the direction
energy moves
“Get in my belly!”
3) Food Webs
Since most organisms eat more than one
thing, a web shows the realistic transfer
of energy
Can you make a food web with
these organisms?
Draw on your paper!
4) Energy Pyramids
Describe the amount of energy
that is passed from one level to
another
10% Loss
10% Loss