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Material Cycles

The flow of an element through the physical environment and living tissues of an ecosystem

What is Recycled?

More than 30 chemical elements are cycled through the environment by material cycles

Some examples are : Water Carbon Nitrogen Phosphorous

Water cycle Water ______________ into clouds. Water falls as _________________. ________ & _________ forms fresh lakes,

rivers, ponds, streams, and ground water. ___________ take up water Water returns to the atmosphere through

the process of _____________ & ________________.

condenses

precipitationRunoff seepage

Roots

evaporationtranspiration

Condensation

Seepage

Runoff

Precipitation

TranspirationEvaporation

RootUptake

The Water Cycle

CondensationPrecipitation

Runoff

Seepage

Root Uptake

Evaporation Transpiration

Water CycleNASA/Goddard Space Flight Center Conceptual Image Lab

Click on the picture above

Carbon Cycle

1. In the atmosphere as carbon dioxide(CO2)

2. In the ocean as dissolved CO2

3. As calcium carbonate, which is part of bones and shells

Where is Carbon found?

Carbon Cycle Plants take in CO2 and use the carbon to

make carbohydrates during photosynthesis.

Carbon (in the form of carbohydrates) is passed along the food chain.

Carbon Cycle Carbon is released

into the atmosphere by volcanic activity, respiration, burning of fossil fuel (industry), and by decomposition of organic matter.

Go to Section:

CO2 in Atmosphere

CO2 in Ocean

Carbon Cycle

NASA/Goddard Space Flight Center Conceptual Image Lab

Click on the picture above

Nitrogen Cycle Nitrogen is required to make

amino acids

which are used to build proteins

Nitrogen Cycle Special bacteria which live on plant

roots, take N2 from the atmosphere and convert it to ammonia (NH3) in a process called nitrogen fixation

Other bacteria break down ammonia from decaying organisms into nitrite (NO2-) or nitrate (NO3-) which is used by producers and consumers

The Nitrogen Cycle

N2 in Atmosphere

NO3- Nitrate &

NO2- NitriteNH3

Ammonia

Bacteria with plant roots

INORGANIC

a (1) :  being or composed of matter other than plant or animal : 

EX. mineral (2) :  forming or belonging to the inanimate world

Phosphorus Cycle Found mostly as inorganic

compounds (minerals)

1. On land in rock and in soil2. In the ocean as sediments

Calcium Carbonate Shell

Phosphorus rich Sediment

Phosphorus Cycle

Producers are able to bind phosphate into organic compounds (usable to us).

The producers get eaten by consumers who then acquire the phosphorus for their own use.

What do they use it for???…

Phosphorus Cycle Phosphorus is essential to life because it is part of

DNA RNA & ATP

ATP = ENERGY!

Class Activity

Work with our partner to complete the Material Cycle cooperative activity

There are four diagrams that you need to complete

When your group is finished with one diagram, bring it up to your teacher for verification

You can use your notes for reference