1. Do Now Take notes from side counter Take notes from side counter At the top of your notes, make a food chain out of the following: owlseeds mouse snake HOMEWORK Finish worksheet

2. Energy in an Ecosystem

3. Where does the Earth’s energy come from??? All life processes on Earth require the use of energy All life processes on Earth require the use of energy The ____________________ is the main source of energy The ____________________ is the main source of energy

4. Producers They use the ________________ energy to They use the ________________ energy to produce their own ______________. They do this by the process of __________________.

5. CO 2 + H 2 O O 2 + C 6 H 12 O 6 Carbon Dioxide + Water Oxygen and Glucose (sugar) Photosynthesis

6. Consumers 1st level consumer:Eats producers 1st level consumer:Eats producers Examples: mouse, bird, insects, rabbits, cow, deer 2nd level consumer: Eats first level consumer 2nd level consumer: Eats first level consumer Examples: Snakes, lizards, frogs 3rd level consumer: Eats second level consumer 3rd level consumer: Eats second level consumer Examples: Owl, bear, lion

7. Consumer Pyramid Producers 1 st level consumers 2 nd level consumers 3 rd level consumers

8. Energy Pyramid Contains the most energy Contains the least energy As organisms eat food, Energy is lost as heat, waste, and is used for life processes.

9. Biomass Pyramid Contains the most biomass Contains the least biomass Biomass is the total mass of a particular group of organisms