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CYCLING OF MATTER

Across
Compounds which are broken down into simple sugars. Source for quick energy.
Nitrogen is converted into various chemical forms (ammonia, nitrates, nitrites) as it is recycled in the ecosystems.
A form of phosphorus found in nature.
Dark organic component of soil, formed by the decomposition of plant material in a compost pile.
Microorganisms living in the roots of plants, change nitrogen into inorganic compounds usable by plants.
The process by which carbon compounds are recycled in the environment.
The production of energy, typically with the intake of oxygen & release of carbon dioxide.
Compound of nitrogen & hydrogen which is released as waste from the body.
Matter that comes from remains of plant and animals.
Down
Mass cannot be created or destroyed.
A natural fuel such as coal or gas, formed in the geological past from the remains of living organisms.
The movement of phosphorus through the lithosphere, hydrosphere, & biosphere.
Upper layer of earth in which plants grow; a black or dark brown material.
Is the movement and exchange of organic & inorganic matter back into the production of living matter.
The chemical element needed to make strong bones. Nutrient found in Milk.
The state or process of rotting; decay.
A heap of manure and vegetation and other organic residues that are decaying to become compost.
Water circulates between the earth's oceans, atmosphere, and land.