| Term | Pronounciation | Definition |
| Adaptation | ad-ap-tay-shun | The adjustments that occur in animals in resect of their environments. |
| Anthocyanin | an-tho-sy-a-nin | A pigment that produces blue, violet and red colors in flowers, fruits, leaves and other plant parts. |
| Broadleaf | brawd leef | A tree with wide leaves rather than leaves which are very thin like pine needles. Many broadleaf trees are deciduous meaning they lose their leaves in winter. |
| Carbon Dioxide | kar-bun di-ox-ide | A heavy colorless, odorless gas used by plants during photosynthesis. |
| Carbohydrates | car-bo-hi-drates | Simple sugars which are an important food source for plants and animals. |
| Carotene | care-a-teen | A compound which produces orange or red colors in plants. |
| Chlorophyll | klor-a-fill | The green pigment in plants responsible for capturing light energy needed for photosynthesis. |
| Chloroplasts | klor-o-plasts | Small units within the stems and leaves of green plants which contain chlorophyll. |
| classification | klas-i-fi-kayshun | Any scheme for structuring data that is used to group individuals or sometimes attributes. |
| climate | kli-mat | The average weather conditions experienced at a place over a long period. |
| Co-adaptation | ko-ad-ap-tay-shun | The development and maintenance of advantageous genetic traits, so that mutual relationships can persist. Both parties evolve adaptations that increase the effectiveness of the relationship. |
| Cones | cohns | Structures from coniferous plants which contain seeds. |
| Conifer | con-i-fer | A cone bearing tree which also has thin leaves or needles. Pines, firs, junipers, larches, spruces, and yews are conifers. |
| Diameter | di-am-eter | A straight line running through the center of a circle. |
| Ecology | ee-kol-o-gee | The scientific study of the interrelationships among organisms, between organisms, and all aspects, living and non-living, of their environment. |
| Ecosystem | eek-o-sis-tem | A group of plants and animals that rely on one another as well as the environment where they live for survival. |
| Environment | en-vi-ron-ment | The complete range of external conditions, physical and biological, in which an organism lives. |
| Fruit | froot | The seed bearing structure of a deciduous tree. |
| Giant Redwoods | | A very tall sequoia [se-koy-a], with a reddish bark that grows in coastal California and can reach a height of over 100 meters (330 feet). |
| Habitat | hab-i-tat | The natural conditions in which a plant or animal lives. |
| Nutrients | new-tree-ents | Any substance that provides nourishment, for example, the minerals that a plant takes from the soil, or the parts of food that keeps a human body healthy and helps it grow. |
| Organism | or-gan-ism | An individual living animal or plant; a living being. |
| Pigment | pig-ment | A substance that gives something its color. |
| Shrub | shrub | A woody plant which branches below or near ground level into several main stems, so it has no clear trunk. |
| Tree | Tree | A woody plant with a single main stem (the trunk), that is unbranched near the ground. At the end of each growing season there is no die-back of parts apart from the loss of foliage. |
| Urban | er-ban | Living or situated in a city or town. |
| wastewater | wayst-wa-ter | Water that has been used, like the water the water that is left over after you do the dishes. |
| weather | we-ther | Atmospheric conditions prevailing at a place and time, combination produced by heat or cold, clearness or cloudiness, dryness or moisture, wind or calm, high or low pressure, and electrical state, of local air and sky. |