Ecosystem

Ecosystems and Food Chains

4th grade

by Avni Khajuria

Food Chain or Food Web

the flow of energy from one living thing to another living thing.

Multiple Choice

What first receives the energy from the sun?

• producers (plants)

• consumers (animals)

• decomposers (bacteria and fungi)

Multiple Choice

What is the main source of energy?

• plants

• sun

• animals

Multiple Choice

Producers mean ....

• They can produce their own food.

• They eat other animals

Multiple Choice

Plants are the only producers.

• True

• False

Multiple Choice

When the lion dies, the ______________ break down the nutrients and put them back to the soil.

• producers

• consumers

• decomposers

Multiple Select

A fish lives in a terrestrial ecosystem.

• True

• False

Multiple Choice

Which of the following things are biotic?

• water

• air

• plants

• rocks

Multiple Select

Select all of the consumers. (Pick 3)

• fish

• lions

• grass

• people

• rocks

Multiple Choice

Which one breaks down dead plants and animals?

• producers

• decomposers

• abiotic

• consumers

Multiple Choice

What is an omnivore?

• an animal that only eats meat

• an animal that only eats oreos

• an animal that eats both plants and meat

• an animal that eats only plants

Multiple Select

Select two examples of herbivores (plant-eating animals).

• giraffe

• wolf

• deer

Multiple Choice

The organism that eats only plants.

• herbivores

• carnivores

Multiple Choice

A ____________ is an example of a carnivore.

• human

• deer

• lion

Multiple Choice

A ________________ is an example of a herbivore.

• cow

• raccoon

• tiger

• snake

Multiple Select

The arrow on the food chain diagram shows which way the energy flows.

• true

• false

Multiple Select

An animal can be both a predator and prey.

• true

• false

Multiple Choice

What would happen to the food web if you get rid of producers?

• The entire food web will collaspe.

• The entire food web will survive.