How Do organisms Get Energy? Objectives: -Learn how animals obtain nutrients. -Identify an ecosystem’s energy source. -Describe how energy moves through an ecosystem.

Vocabulary ProducerProducer Food ChainFood Chain ConsumerConsumer Food WebFood Web Energy PyramidEnergy Pyramid

Getting Energy A.Getting Energy 1.Everything you do requires energy 2.All living things need energy to move, eat, grow & reproduce 3.Energy starts with the sun 4.Food Chains show how energy flows through an ecosystem 5.A primary consumer is a herbivore, eats only plants (producers) 6.A secondary consumer is a carnivore, eats meat (primary consumers) 7.Decomposers eat the remains of dead animals (bacteria, fungi) and then return the nutrients in the soil.

Vocabulary Producer: An organisms that makes its own food. Food Chain: A sequence of connected producers and consumers. Consumer: An organism that eats other organisms.

Food Webs B. Food Webs 1. A food chain shows feeding relationships in ecosystems. 2. Since most organism are part of more than one food chain, a Food Web is a better way to show feeding relationships. 3. A change in one population in an ecosystem can affect other populations…ex: if the population decreased or disappeared, the animals that feed on the mouse would have less food and would result in their population decreasing too.

Vocabulary Food Webs: A group of connected food chains in an ecosystem.

Insta-Lab -Brainstorm a list of organisms in your area. -Write the name of one on a large index card. -Use string to attach the card with your organisms’ name to another students’ cards with the names of organisms that eat yours or are eaten by it. -What have you and the other students made?

The Energy Pyramid C. The Energy Pyramid 1. Energy is lost each time it passes from one organism to another % of an organisms energy is lost at each step of the food chain. 3. An energy pyramid shows that energy is lost at each level of the food chain. 4. Because of the energy loss, the number of organisms decrease from one level to the next.

Vocabulary Energy Pyramid: Shows that energy is lost at each level of the food chain.

Lesson 2 Review In your groups, complete #’s 1, 3, 5 & 6 As an individual do # 4 Remember…you have to use clues or definitions for hints on where the words go…across and up or down. OR Complete the Art Activity