Exploring the Nature of Energy Flow

Energy Flow in Ecosystems

How does energy Flow in an Ecosystem?

• Explain the difference between food chains and food webs.

• Make predictions about factors affecting plants and animal populations.

• Analyze and evaluate changes in a food chain.

Multiple Choice

What is a consumer? 

• Organism that creates their own food.
• Organism that eat other organisms for energy
• Organism that eat other dead organisms

Multiple Choice

What are plants called in a food chain?

• Producers
• Consumers
• Decomposers
• Scavengers

Key Vocabulary

food chains

food webs

energy pyramid

producer

consumer

primary consumer

secondary consumer

tertiary consumer

Multiple Choice

What is the primary source of energy for all Producers?

• Snickers

• Water

• Sun

• Oxygen

Multiple Choice

Where does the energy start in this food chain?

• Plant
• Sun
• Deer
• Wolf

Multiple Choice

What is a food chain?

• The flow of energy from one organism to another.

• The order in which you eat your lucky charms.

• The line of cooks in the cafeteria.

• The method in which plants grow.

Food Chains & Food Webs

Food Webs show all the Food Chains together within a specific ecosystem.

Multiple Choice

The direction of the flow of energy in a food web is represented by ___.

• Light bulbs
• Dotted Lines
• Arrows
• Bubbles

Multiple Choice

A connection of food chains with many food energy paths in an ecosystem is a ____________

• ecosystem
• food web
• population

Multiple Choice

a system of food chains that shows the transfer of energy is termed

• food web
• food chain
• prey
• predator

Multiple Choice

All energy transfers in an ecosystem begin with

• a scavenger
• the sun
• a decomposer
• a herbivore

Open Ended

Name a Producer in this Food Web.

Open Ended

Name TWO consumers that feed on Pallid-winged grasshoppers.

Open Ended

What could the impact be if all of the grasshopper mice and wood rats died from a random disease?

Multiple Choice

Non-living factors are

• Abiotic

• Biotic

Multiple Choice

Living factors are

• Abiotic

• Biotic

Categorize

Options (11)

Kangaroo

Tree

Grass

Frog

Mushroom

Fish

Sun

Rock

Water

Air

Sediments

Organize these options into the right categories

Biotic Factors

Abiotic Factors

Multiple Choice

The SUN is an example of a(n)....

• Abiotic Factor

• Biotic Factor

Multiple Choice

A TREE is an example of a(n)....

• Abiotic Factor

• Biotic Factor

Match

Match the following

Food Web

Food Chain

FLOW OF ENERGY

• Food Web

• Food Chain

• FLOW OF ENERGY

Multiple Choice

WATER is an example of a(n)....

• Abiotic Factor

• Biotic Factor

Multiple Choice

Based on the food web, what would happen to the grain population if the mice were removed?

• It would increase, because there is one less population eating it.

• It would decrease, because there is one less population eating it.

• It would decrease, because there is another population eating it.

Multiple Choice

Based on the food web, what species population would most likely increase if there were no more owls?

• Grass

• Mice

• Rabbit

• Grain

Multiple Choice

Based on the food web, what species population would most likely decrease if there was an influx (more) of foxes in the area?

• Grass

• Mice

• Rabbit

• Grain