1. Energy Flows – Food Chains and Food Webs

2. Food Chain​
Series of steps in an ecosystem in which organisms transfer energy AND matter by eating​.  Energy flows 1 way.  Matter is recycled.

3. Food Web
A group of overlapping food chains connected together in an ecosystem 

4. Trophic Levels Different feeding positions in a food chain or web.
Copy the example food chain below

5. Trophic Level Names
Copy the example food chain below

6. Primary Consumer Eats producers to get energy
2nd trophic level of the energy pyramid.

7. Secondary Consumer Eats herbivores to get energy
3rd trophic level of the energy pyramid.

8. Tertiary Consumer Eats other carnivores to get energy
4th/top energy level of the trophic level.

9. Energy Level Limit 10% energy passed when one organism eats another
Most energy has been used by other organisms in the food chain to stay alive so...fewer organisms at the top

10. Energy Types
Chemical Energy – passed between organisms in a food chain
Thermal Energy – heat lost to the environment
Solar Energy – Original source of energy

11. Energy
Transfer
When energy moves from one organism to another in a food chain. 1 way into/out of the food web/chain.

12. Energy Transformation
When energy changes from one type of energy to another in a food chain.
Example – solar to chemical during photosynthesis
Example 2 - chemical to heat in an organism

13. Matter Recycles
Matter recycles between each organism in a food web.  It never leaves the ecosystem.