1. Warm Up
List all the things you can think of that are found in a pond ecosystem. Label the things biotic and abiotic.

2. Standard
S7L4 Students will examine the dependence of organisms on one another and their environments.
B: Explain in a food web that sunlight is the source of energy and that this energy moves from organism to organism.

3. Living Things Need Energy
Living things need energy to survive.
Organisms, in any community, can be divided into three groups based on how they get energy.
What are these groups?

4. Copy the following to compare producers, consumers, and decomposers
Comsumers
Producers
Decomposers

5. Food Chains and Food Webs
What is the definition of a food chain?
What is the definition of a food web?
There are two main food webs on Earth:
A land food web
An aquatic food web
Fact of the day ( any energy not immediately used by an organism is stored in its tissues. Only the energy stored in an organism’s tissues can be used by the next consumer).

6. Energy Pyramids What is the definition for energy pyramid?
You can see on page 487 a energy pyramid. In the example shown it has a large base and a small top.
Less energy is available at the higher levels because only energy stored in the tissues of an organism can be transferred to the next level.
What is the energy pyramid in figure 3 showing?

7. Group
Read page 488 and 489
Write a summary about wolves and the energy pyramid.
Write a summary about gray wolves and the food web.
Write a summary about balance in ecosystems.
Briefly illustrate each summary.
Paper will be provide

9. Review standard Ticket out !!!!!
Describe how energy flows through a food web.
How does this correspond to the standard for this lesson?