Vocab
Cycles
Processes
Stresses
100

warming liquid changing into a vapor

evaporation

100

What two gases comprise carbon dioxide?

carbon and oxygen

100

What process has plants using water, carbon dioxide, and light energy to form sugar molecules and oxygen?


photosynthesis

100

Name two natural stresses on the ecosystem.

drought, flood, fire, ....

200

cooling vapor changing back to a liquid

condensation

200

What is the opposite of photosynthesis?

respiration

200

What changes most nitrogen into a usable compound?

bacteria

200

How can fires be beneficial to an ecosystem?

They get rid of dead trees, etc.  They all cause nutrients to be recycled into the soil.

300

water droplets falling to the earth

precipitation

300

What are winds that change direction with the seasons, controlling the wet and dry seasons in some areas?

monsoons

300

Other than bacteria, what is a "shocking" way to change nitrogen into a usable form?

lightning

300

How can floods be beneficial to an ecosystem?

They can distribute fertile soil and seeds.

400

precipitation soaked into and stored in the ground

ground water

400

What happens to dead organisms to break down their bodies and release carbon back into the air as carbon dioxide?

decomposition

400

What process has organisms using sugar molecules and oxygen to produce energy, carbon dioxide, and water?

respiration

400

How is a drought different from other natural disasters?

They do not have a definite beginning or ending.

500
any physical hazard to life caused by having too much or too little of things needed for life

stress

500

What do nitrogen compounds help plants do?

grow and make proteins

500

What process allows plants to release water vapor into the air?

transpiration

500

After a stress occurs, ecosystems often gradually change in populations or organisms.  What is that called?

succession