| A | |
| B |
Balance - A state of equilibrium or stability Bark - The tough outside covering of a woody stem or root Biodegradable - Being able to be broken down or decomposed by natural means By-product - Something that is made in the process of making something else
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| C |
Cambium - Clusters of tree cells that produce a new layer of wood and an new layer of bark each year, thus forming the tree rings we can count to tell the age of a tree Carbon Dioxide - A colorless, odorless, incombustible gas that is formed during respiration, combustion, and organic decomposition Cells - The basic building blocks of living things Cellulose - The material that makes up plant cell walls Chlorophyll - The green substance found in leaves and needles Compost - A collection of organic scraps and garbage that decays and becomes good fertilizer Conifer - A cone-bearing tree
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| D |
Decay The coming apart or rotting of organic material Decompose To decay or come apart
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| E |
Ecology - The study of how plants and animals interact with their environment Energy - A source of usable power, such as sunlight or food Environment - The conditions or elements that surround an ecological community or its members Erosion - The wearing away of the soil, usually by wind or water
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| F |
Feedback - The return of information about the result of a process or activity. It often results in change by the receiver of the feedback information. Fiber - Thin threads that bind together to form animal and plant matter
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| G | |
| H |
Habitat - The place that is home to a plant or animal Heartwood - The hard, inactive wood at the center of the tree Hydroelectric plant - A place where electricity is produced by the energy of rapidly moving water
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| I | |
| J | |
| K | |
| L |
Landfills - Places in our communities where garbage is unloaded and then covered over with dirt and packed down Lignin - The sticky substance that binds plant cells together
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| M | |
| N |
Natural regeneration - The process by which seeds sprout to produce seedlings in the wild (without the use of a nursery to cultivate them) Natural Resources - Things we use that come from the earth
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| O |
Organic - Material made of carbon; made of living matter Oxygen - An element found freely in nature that is necessary for humans and animals to breathe and is needed for nearly all combustion to occur
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| P |
Photosynthesis - The process of producing food for trees by combining sun light, water, chlorophyll and carbon dioxide Pulp - The mash that forms when wood chips are cooked
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| Q | |
| R |
Recyclable - Being able to be utilized again, often by being restructured into something else Relic - An object with historic value that has survived from the past Renewable - Having the capability of replenishing itself Riparian zone - The area along a river or stream Roots - The tree parts below ground that hold the tree. Root hairs, which push their way through the soil and absorb moisture, send water and nutrients up into the tree.
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| S |
Sapwood - Wood that lies between the cambium and the heartwood. It acts as a major conductor of water and minerals for the tree Spawning - The producing or depositing of eggs by fish
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| T | |
| U | |
| V | |
| W |
Web of Life - The network of relationships that interconnect all species of an ecological community Wild fire - A fire that is burning out of control
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| X | |
| Y | |
| Z |