Food Chain vs Food Web

Food Chain vs Food Web

Day 1

Open Ended

What do all the organisms have in common? How do you read a food chain?

Food Chain vs Food Web

What is the difference between the two?

What's happening in this story

Food Chain

Food Chain- Flow of energy (linear) from producer to tertiary consumers. 

A food chain starts off with a producers (plants) and shows how energy is moving between the organisms.

The arrows show the flow of energy

How to read a food chain

• All food chains start with the sun (Most will never put it on the actual chain)

• Then energy moves to the producer (organism that makes its own food) in this case we have seaweed

• Next the fish eats the seaweed and gains the energy

• Next the shark eats the fish and gains the energy

• Lastly the zooplankton feeds on the shark after it dies to gain energy.

Multiple Choice

Looking at this food chain, how is the energy flowing?

• Starts with the snake and ends with the Mongoose

• Starts with the leaf and ends with the snake

• Starts with the Chameleon and ends with the leaf

• Starts with the leaf and ends with the mongoose

Open Ended

How are the food chain different from the food web?

Food Web

Food Web- Flow of energy in the overall ecosystem between all of the biotic (living) factors. The food web has many paths to show the many options for energy to flow. 

Represents all of the food chains in the ecosystem

The arrows still show the flow of energy.

How to read a food web

• Start with your producers (plants)

• Next follow the arrow(s) of organisms that may eat them.

• Continue following the arrows until you have reached the "end".

Multiple Choice

How many organisms get energy from the tomato plant?

• 1

• 2

• 3

• 4

Multiple Choice

How many organisms get energy from the rat?

• 1

• 2

• 3

• 4

Multiple Choice

How many organisms does the owl get energy from?

• 1

• 2

• 3

• 4

Multiple Choice

How many organisms does the lion get energy from?

• 1

• 2

• 3

• 4

How does this video connect with what we have learned today?

Group Work

• In your groups you will:

• Select your group roles

• Complete the Group Work section on today's handout