Bell Ringer 10/26/09. I am a producer in an ecosystem. Who/What am I?. Core Content. SC-05-2.3.1 Students will: ｷ describe the circulation of water (evaporation and condensation) from the surface of the Earth, through the crust, oceans, and atmosphere (water cycle);
I am a producer in an ecosystem. Who/What am I?
The continuous movement of water between Earth’s surface and the air is the water cycle.
All water on Earth is recycled constantly.
combustion (human-made and natural)
CO2 in air
CO2 in water
marine plankton remains
The carbon cycle is the continuous exchange
of carbon among living things.
nitrogen gas in air (N2)
The nitrogen cycle is the continuous trapping of nitrogen gas into compounds in the soil and its return to the air.
Water cycle: Plants release water to the atmosphere through transpiration.
Carbon cycle: Plants turn carbon dioxide into carbon-rich foods.
Nitrogen cycle: Plants play a key role in housing bacteria that fix nitrogen and transform it into a usable form that other plants can build with.