1. TEACHER NOTES l Go through the slide show beforehand in notes view as well as regular slide-show. The notes help with additional information & discussion. l You can print a 6-slides-per-page or 3- slides-per-page handout and make your own notes from the slide presentation. l You may want to print the notes pages of the slides. However, the notes pages have the slide (one per page) l You may want to use this PPT as a review to check for student understanding.

2. TAKING NOTES l This PowerPoint accompanies the Energy Flow Activity. l The “take notes” symbol represents information that is in the Energy Flow Activity. l Not everything shown is to be taken as notes. Listen carefully to the teacher discussion. Check your Energy Flow Activity answers as needed.

3. Introduction to ENERGY FLOW PYRAMIDS

4. sun eclipse with palm the ultimate energy source

5. Ecological Pyramids l Instead of representing trophic levels in a food web, an ecological pyramid can be used.

6. Ecological Pyramids l Does this pyramid represent a food chain or web? l How could this pyramid be changed to represent a food web?

7. Ecological Pyramids l What do the big numbers represent? l What does the kcal mean?

8. Pyramid of Energy l What happens to the energy as you go up? l How much energy is available for the next level? l What type of pyramid is this?

9. Ecological Pyramids l How is this pyramid different from the previous ones? l What could the multiple pictures of the species at each level represent?

10. Pyramid of Biomass l What information would this pyramid include if it were a pyramid of biomass? l How do they get a number total for the biomass of a population?

11. Pyramid of Numbers l What information would this pyramid include if it were a pyramid of numbers? l How do they get a number total for a population of organisms?

12. Ecological Pyramids l Why is a pyramid used to represent these feeding relationships? l How is this also a pyramid? l Explain what happens to the mass, numbers,and energy from trophic level to trophic level.

13. Ecological Pyramids l What is different about this pyramid? l How can the producer level be so small and support the trophic levels above it?

14. Pyramids of Aquatic Ecosystems l Numbers l Biomass l Energy

15. Pyramids of Temperate Forests l Numbers l Biomass l Energy

16. Ecological Pyramids l How is this an ecological pyramid?

17. Ultimate Predator? l Why is man sometimes called the “Ultimate Predator”?