Matter & Energy in the Environment

What is an ecosystem?

• All living and non-living things in an area

• living things in an area

• non-living things in an area

• fuel efficient vehicle

The living things in an ecosystem are _____ _____.

• abiotic factors

• green plants

• biotic factors

• common ancestors

Sunlight and temperature are examples of nonliving factors in an ecosystem. Also called _____ _____.

• abiotic factors

• biotic factors

• common ancestors

• resources

Many types of _____ are used over and over again in the environment.

• producers

• nitrogen

• water

• matter

The way water and gases move through ecosystems and are used over and over is called a _____.

• survival

• precipitation

• cycle

• process

_____ continually cycles from Earth to its atmosphere and back again.

• Matter

• Water

• Nitrogen

• Bacteria

The Water Cycle involves three processes:

• herbivors, carnivores, and omnivores

• metaphase, anaphase, and telephase

• evaporation, condensation, and precipitation

• Photosynthesis, respiration, and producers

The process during which liquid water changes into a gas called water vapor.

• evaporation

• condensation

• precipitation

• photosynthesis

The process during which water vapor changes into liquid water. Clouds form because of _____.

• evaporation

• condensation

• precipitation

• respiration

_____ is water falling from the clouds to Earth's surface in the form of rain, snow, sleet, hail.

• evaporation

• condensation

• precipitation

• fixation