Matter Cycles & Ecosystems

Front

What are the two gases that are essential for life on Earth?

Back

Carbon dioxide and oxygen.

Front

What is the role of decomposers in the matter cycle?

Back

They break down dead organisms.

Front

What is an interaction in an ecosystem?

Back

Any behavior that causes something to affect something else.

Front

How would you define an ecosystem?

Back

A community made up of living and nonliving things interacting with each other.

Front

What organisms help speed up the composting process?

Back

Earthworms.

Front

What is matter?

Back

Anything that has mass and takes up space.

Front

What is a nutrient cycle?

Back

The movement and exchange of organic and inorganic matter back into the production of living matter.

Front

What is photosynthesis?

Back

The process by which green plants use sunlight to synthesize foods with the help of chlorophyll.

Front

What is the water cycle?

Back

The continuous movement of water on, above, and below the surface of the Earth.

Front

What is a food chain?

Back

A series of organisms each dependent on the next as a source of food.