Vocabulary
The Water Cycle
The Carbon Cycle
The Nitrogen Cycle
The Phosphorus Cycle
100

Anything that has mass and takes up space

Matter

100

Water enters the atmosphere in the form of ____________________

Water vapor

100

How does carbon get into the soil?

Decaying organisms

100

Most of Earth's nitrogen is found in the __________

Atmosphere

100

3 sources of phosphate in our soil

Sewage treatment plants, fertilizer use, phosphate mines

200

A chemical substance that an organism must obtain from its environment to sustain life

Nutrient

200

When water vapor rises and condenses around particles in the air to form clouds

Condensation

200

Name 3 ways CO2 gets put into the air

Decaying organisms, burning fossil fuels, respiration

200

Process where nitrogen gas (N2) is converted to ammonium (NH4+)

Nitrogen fixation

200

In the short term phosphorus cycle, what uses phosphates available in the soil?

Plants

300

Exchange of matter through the biosphere involving living organisms, chemical processes, and geological processes

Biogeochemical Cycle

300

Chemical processes occur in plants and cause the plants to release water vapor to cool themselves. This is known as ___________

Transpiration

300

When carbon has been underground for so long and under so much pressure, these are created

Fossil fuels (coal, natural gas, oil)

300

Process that turns ammonium (NH4+) into a form plants can use

Nitrification

300

Role of decomposers in the short term phosphorus cycle?

Return phosphorus back to the soil

400

Process in which nitrogen gas is captured and converted into a form plants can use

Nitrogen fixation

400

How water reaches the Earth...rain, snow, sleet, hail

Precipitation
400

How do plants help combat the abundance of CO2 in our air?

Photosynthesis! Take in CO2 to produce O2

400

Too much nitrogen can result in ________, which kills aquatic wildlife

Algae blooms

400

How does phosphate become readily available to land organisms again?

Weathering or erosion

500

Process in which nitrogen compounds are converted back into nitrogen gas and returned to the atmosphere

Denitrification

500

Process of water absorbing into the Earth into the groundwater supply

Percolation

500

Carbon and oxygen can mix with calcium ions present in rock to form _________

CaCO3 (lime or calcium carbonate)

500

Microorganisms convert nitrates back into nitrogen gas

Denitrification

500

Too much phosphate (or nitrogen) can result in this issue in our aquatic ecosystems

Algae bloom

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