Sept+27

=We are inside today. We will be outside= =Thursday and Friday.=

=Bell Ringer:= =Get Computers and log onto: The daily agenda.=

Review the information on models. Record notes in your notebook. http://www.utexas.edu/courses/bio301d/Topics/Models/Text.html

Review the following sites on trophic pyramids: http://www.physicalgeography.net/fundamentals/9o.html http://www.schools.utah.gov/curr/science/sciber00/8th/energy/sciber/ecosys.htm

Create a Model that shows the decrease of energy as you move up the levels of the pyramid. Remember only 10% of the energy is transfered.

Start with 1000 squares at the lowest level.

Reflection questions in journal / notebook:

1. Can your energy pyramid support another level? if so how many squares would transfer to the next level? 2. What is the 10% rule? 3. How does your model represent the # of organisms that exist in an ecosystem?- relate to producers & consumers.