Ecosystem Basics
Producers,Consumers,Decomposers
Energy Flow
Cycles in Nature
Vocabulary
100

This is all the living and nonliving things interacting in an environment.

What is an ecosystem?

100

These organisms make their own food using sunlight.

What are producers?

100

Energy in most ecosystems starts with this.

What is the sun?

100

This cycle moves water through evaporation, condensation, and precipitation.

What is the water cycle?

100

A group of the same kind of organism living together.

What is a population?

200

The living part of an ecosystem is called this.

What is the biotic factor?

200

An animal that only eats plants.

What is an herbivore?

200

A diagram that shows how energy moves from one organism to another.

What is a food chain?

200

: Plants take in this gas during photosynthesis.

What is carbon dioxide?

200

Different populations living in the same area.

What is a community?

300

Rocks, water, and sunlight are examples of these ecosystem parts.

What are abiotic factors?

300

An animal that eats both plants and animals.

What is an omnivore?

300

A model that shows how energy flows through many connected food chains.

What is a food web?

300

Animals breathe out this gas that plants use.

What is carbon dioxide?

300

The pathway showing who eats whom in an ecosystem.

What is a food chain?

400

This is the role or “job” an organism plays in its environment.

What is a niche?

400

An animal that hunts and eats other animals.

What is a predator?

400

In a food chain, these organisms always come first.

What are producers?

400

Decomposers return this important material to the soil for plants to reuse.

What are nutrients?

400

The process plants use to make food.

What is photosynthesis?

500

This describes how different species in an ecosystem depend on each other.

What is interdependence?

500

Mushrooms, bacteria, and fungi play this role in breaking down dead matter.

What are decomposers?

500

Only about this percent of energy is passed from one level to the next in an energy pyramid.

What is 10%?

500

This cycle explains how carbon moves between plants, animals, and the atmosphere.

  • What is the carbon cycle?

500

his word means the passing of matter and energy from one organism to another.

What is transfer?

M
e
n
u