| A | B |
| Abiotic | absence of life or living organisms. |
| Acid | neutralizes alkalis and turns blue litmus paper red. |
| Aquatic | living or growing in water. |
| Base | chemical compound that turns red litmus blue, pH greater than 7. |
| Biochemical Oxygen Demand | Oxygen required by aerobic organisms as in sewage for metabolism. |
| Biotic | of or relating to life. |
| Canopy | portion of the Riparian area that provides overhead cover. |
| Deciduous | shedding leaves annually. |
| Dissolved Oxygen Concentration | Amount of oxygen dissolved in water. |
| Dorsal Fin | fin on the back of aquatic vertebrates. |
| Forb | any herb that is not grass like. |
| Grass | Bladed, sheath like plants. |
| Hydrogen Ion | H+, found in acids. |
| Hydroxyl Ion | ion with a negative charge, OH-, found in bases. |
| Imbricate Leaves | overlapping scales or shingles. |
| Lenticels | spots on a plant stem serving as pores to let in/out oxygen. |
| Macroinvertebrate | organism without a backbone that can be seen without a microscope. |
| Opposite Twigs | when branches grow directly across from each other. |
| pH scale | scale from 0-14 of the acidity and alkalinity of a solution. |
| Riparian Zone | area of vegetation next to a stream, composed of leafy plants, shrubs and trees. |
| Spawning | The mass of eggs deposited by fish, amphibians etc. |
| Shrub | a woody plant smaller than a tree with multiple stems. |
| Watershed | the region or area drained by a river, stream, a drainage area. |
| Conveyance System | Gutters, manholes and storm drains |
| Pervious Surface | Water CAN soak into this surface. |
| Imperivous Surface | Water CANNOT soak into this surface. |
| Pollutants | Waste materials that pollute air, water or soil. |