: Biogeochemical Cycles/ Nutrient Cycles

Matter is recycled within and between ecosystems

Nutrient Cycling Matter cycles through the environment. Matter can be__________, but cannot be________ or ___________. ___________- matter that organisms require for life process, circulate throughout the environment in biogeochemical cycles. ______________________, or Nutrient cycles, is how elements, chemical compounds, and other forms of matter are passed from one organism to another and from one part of the biosphere to another. transformed created destroyed Nutrients Biogeochemical Cycles

The Water Cycle

The Water Cycle water All living things require _________to survive. Water cycles happen between the _________, ____________, ______, and ____________. Several different processes are involved in the water cycle, including evaporation and transpiration. During ____________, liquid water changes to a gas. _____________is the evaporation of water from the leaves of plants. ocean atmosphere land living things evaporation Transpiration

Evaporation and Transpiration

The Water Cycle During the day, the ______ heats the _______________. Water changes from a gas to a liquid through the process of ____________. Water vapor in the atmosphere _________into tiny droplets that form clouds. When the droplets get large enough, they fall to Earth’s surface as ______________ —rain, snow, sleet, or hail. sun atmosphere condensation condenses precipitation

Condensation and Precipitation

The Water Cycle precipitation On land, much of the ______________runs along the surface of the ground until it enters a river or stream that carries the _________ back to an ocean or lake. Rain also ______ into the soil, some of it deeply enough to become ground water. Water in the soil enters plants through the ________, and the water cycle begins again. precipitation runoff seeps roots

Runoff, Seepage, and Root Uptake

The Carbon Cycle

The Carbon Cycle Carbon _________is a key ingredient of living tissue. In the atmosphere, carbon is present as _____________ gas, CO2. Carbon dioxide is __________into the atmosphere by carbon dioxide released volcanic activity respiration human activities the decomposition of organic matter

The Carbon Cycle Plants ______take in carbon dioxide and use the carbon to build carbohydrates during _____________. The _______________are passed along food webs to animals and other consumers. In the ocean, carbon is also found, along with calcium and oxygen, in calcium carbonate, which is formed by many marine organisms. photosynthesis carbohydrates

The Carbon Cycle

HOW CAN HUMANS IMPACT THE Carbon cycle? Humans affect the carbon cycle through the exhalation of carbon dioxide, the burning of fossil fuels, deforestation and other poor agricultural practices. Burning fossil fuels and deforestation leads to a disruption in the balance of the carbon cycle

The Nitrogen Cycle

The Nitrogen Cycle __________need nitrogen to build proteins. There are different forms of the nitrogen cycle through the biosphere. _________gas is the most ___________form of nitrogen on Earth. It __________be directly used by organisms. Nitrogen must be converted into compounds that can enter food webs by the process of “___________________” Organisms Nitrogen abundant cannot Nitrogen Fixation”

Nitrogen Fixation (Nitrification) How do we get the Nitrogen we need? Nitrogen Fixation. Specialized ________convert N2 from the atmosphere to ammonia (NH3) for the plants to use. _______will use to the __________ to make nitrogen-containing organic molecules Animals get nitrogen by _______plants or plant-eating animals bacteria Plants ammonia eating

Denitrification When organisms die, ___________return nitrogen to the soil. Other bacteria change nitrogen compounds called nitrates back into nitrogen gas. This process is called denitrification. decomposers