WATER, CARBON, AND NITROGEN CYCLES

THE WATER CYCLE (HYDROLOGIC CYCLE)The ________________ cycle involves the movement of _________________ back and forth from Earth’s ____________________ to the ________________________.Remember water can exist in 3 states: SolidLiquidGasTHE WATER CYCLE BASIC STEPSWater on the Earth’s surface is ________________ by the sun and _____________________.Water rises into the upper atmosphere, cools, _____________________, and forms ____________________________.Water ____________________ back to the surface as _____________________ (rain, snow, sleet, or hail).THE WATER CYCLE KEY CONCEPTSMost _________________ falls back into the _______________, lakes, rivers, and __________________.Water in the atmosphere is completely ___________________ once every 8 daysWater on this planet can be stored in any one of the following reservoirs: ______________, lakes, rivers, oceans, ______________________, soil, and/or ________________________.

THE CARBON CYCLETHE CARBON CYCLE PHOTOSYNTHESIS____________________ - Plants use ________________ dioxide (CO2) along with water and _________________ to produce ________________ (sugar) and release oxygenFORMULA: ______________________ ________________________

THE CARBON CYCLE RESPIRATION___________________ - Both plants and animals break down glucose (sugar) during respiration to obtain _________________.THE CARBON CYCLE CONSUMPTIONConsumption: During their lifetime, animals pass along _________________ compounds from one another through feeding. Wastes produced during their lifetime are broken down by __________________ such as fungi and bacteria and carbon dioxide is added to the atmosphere.THE CARBON CYCLE DECOMPOSITION

________________ - When living things die, these decomposers break down their ___________________ compounds. Here again carbon dioxide is returned to the atmosphere.THE CARBON CYCLE COMBUSTION________________: Any burning of _______________ fuels (Oil, coal, natural gas) or wood…... or combustion releases the energy stored in these organic compounds and also large amounts of carbon ________________

THE NITROGEN CYCLE KEY CONCEPTSPlants and animals (all living things) need _____________ to make _________________.Plants cannot absorb ______________________ (N2) from the air.Bacteria in the soil convert unusable (N2) from the air into _____________________ (NO3) that plants can use to make their proteins.Animals eat plants to get their ____________________.