Starter Activity: On a show me board Choose an organism and state where it gets its energy from.

1. Starter Activity: On a show me board Choose an organism and state where it gets its energy from.

2. Energy in Ecosystems Learning Intention: Describe and explain what happens to the flow of energy in an ecosystem. Success Criteria: Construct a food chain Describe the path of energy flow in a food chain Explain how much energy is lost from a food chain Explain how energy is lost from a food chain

3. Food chains – what eats what? What is the food chain in this habitat?

4. Food chains A food chain shows what is eaten by what. Each arrow means ‘eaten by’. leaf caterpillar cat bird What does this food chain show? A leaf iseaten bya caterpillar, which iseaten bya bird, which iseaten bya cat. Energy is transferred from one organism to another in the direction of the arrow.

5. Feeding Relationships Key Words

6. Food chains Drag the organisms into the boxes to make three food chains.

7. Food chains – draw your own Draw your own food chains based on the following guidelines: • A food chain from a forest. • A food chain from an ocean. • A food chain with four organisms in it. • A food chain that ends with you! • Use arrows ( ) to show the transfer of energy • between the organisms that you choose.

8. Antarctic food Read the following paragraph about who eats whom in the Antarctic and on a show me board draw a food chain that shows the feeding relationships in this habitat. Don’t forget that your food chain must start with a producer! Killer whales or orca’s range around Antarctica hunting for their food. One of the species that they eat are the Weddell Seal. Weddell seals are large mammals that stay in Antarctica all year round. One of the many things that they eat are squid. Squid are very fast hunters who often poison their prey. They feed on many different organisms including shrimp. Shrimp are small animals that live on the ocean floor. There are over 2,000 different species of shrimp all over the world. They are omnivores but phytoplankton makes up a large part of their diet.

9. Antarctic food chain – answer phyto- plankton shrimp squid weddell seal killer whale Killer whales or orca’s range around Antarctica hunting for their food. One of the species that they eat are the Weddell Seal. Weddell seals are large mammals that stay in Antarctica all year round. One of the many things that they eat are squid. Squid are very fast hunters who often poison their prey. They feed on many different organisms including shrimp. Shrimp are small animals that live on the ocean floor. There are over 2,000 different species of shrimp all over the world. They are omnivores but phytoplankton makes up a large part of their diet.

12. Energy Flow in Ecosystems Watch the following video clips: Energy in Ecosystems Clip 1 Energy in Ecosystems Clip 2 Answer these questions on a Show Me Board: • How much energy is lost at each level of a food chain? • How is this energy lost?

14. Energy Flow in Ecosystems At each level in a food chain 90% of energy is lost as: • Heat • Movement • Undigested materials

15. Energy in Ecosystems Learning Intention: Describe and explain what happens to the flow of energy in an ecosystem. Success Criteria: Construct a food chain Describe the path of energy flow in a food chain Explain how much energy is lost from a food chain Explain how energy is lost from a food chain