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| Celestial body which orbits between Mars and Jupiter. |
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| The scientific study of the universe. |
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| The mixture of gasses that surrounds an astronomical object such as earth. |
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| An area in space with such a strong gravitational pull that no matter or energy can escape from it. |
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| An astronomical object that is composed of mass ice and dust with a long tail. |
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| A group of stars visible from Earth that forms a distinctive patterns |
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| A circular funnel-shaped depression. |
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| The partial or complete hiding from view of an objects such as the sun or moon. |
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| A group of billions of stars and their planets, gas and dust. |
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| The distance that light travels in a vacuum in one year. |
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| The relating to a moon or it's movement around a planet, especially the moon in relation to the earth. |
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| A piece of rock that has reached Earth from outter space. |
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| The spiral galaxy to which Earth and its solar system belong, as a faint band of light in the night sky. |
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| A form or view of the moon phase at a point in the lunar cycle. |
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| A region or cloud of interstellar dust and gas appearing variously as a hazy bright or dark patch. |
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| A star that suddenly increases dramatically in brightness then fades back to original power in the light. |
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| The path that an astronomical object such as a planet, moon, or satellite follows around a larger astronomical object. |
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| A clearly distinguishable period of a process. |
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| An astronomical object that orbits a star and does not shine. |
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| An object put into orbit around the Earth. |
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| The Sun and all the planets, satellites, asteroids, meteors, and comets that are subject to its gravitational pull. |
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| A gaseous mass in space that generates energy by thermonuclear reactions, e.g. the sun. |
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| A gaseous mass in space that generates energy by thermonuclear reactions. |
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| A catastrophic explosion of a large star in the latter stages of a stellar evolution. |
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| To exhibit a decreasing illuminated area from full moon to new moon. |
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| A moldable substance of a mineral origin that feels slightly greasy or oily to the touch. |
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| A large and diverse group of primary aquatic plant-like organisms. |
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| The pigment in plants that captures the light energy required for photosynthesis. |
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| Any tree that has thin leaf needles and produces cones. |
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| It describes trees and bushes when they shed their leaves in the fall. |
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| It describes a tree or bush that retains its foliage throughout the year. |
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| A single-cellular or multi-cellular organism without chlorophyll that reproduces by spores and lives by absorbing nutrients. |
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| Any abnormal vegetable growth or excrescence on plants caused by various agents, e.g. insects, nematodes, fungi, bacteria, viruses, chemicals, and mechanical injuries. |
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| A complex organism consisting of fungi and algae, growing in colors of gray, green, or yellow on rocks and trees. |
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| A plant or animal that lives on or in another, usually larger, host organism in a way that harms or is of no advantage to the host. |
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| A process by which green plants and other organisms turn to CO2, and water into carbohydrates and oxygen, usually light energy trapped by chlorophyll. |
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| A powdery substance produced by flowering plants that contain male reproductive cells. |
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| An organism that manufactures its own food from simple inorganic substances, e.g. a green plant. |
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| A close association of animals or plants of different species that is often, but not always, of mutual benefit. |
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| The act or process of transpiring, especially through the stomata of the plant tissue or the pores of the skin. |
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| Organic matter in various stages of decomposition on the forest floor. |
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| A violent shaking of the Earths crust that may cause destruction. |
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| The gradual wearing away of rock or soil by physical breakdown, chemical solution, and transportation of material. |
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| The study of the structure of Earth or another planet. |
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| Dark brown, organic component of soil that is derived from decomposed plants and animals. |
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| Any various crystalline or grassy, noncrystalline rocks formed by the cooling and solidification of molten earth material (magma). |
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| Parts of soil that do not contain carbon based elements, like dead leaves, insects, etc. |
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| the layer of slightly decomposed organic material on the surface of the floor of the forest. |
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| Rock that was once one form of rock but has changed to another under the influence of heat, pressure, or some other agent without passing through a liquid phase. |
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| any of a class of substances occurring in nature, usually comprising inorganic substances, as quartz or feldspar, |
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| Litter, duff, and humus – top to bottom. Soil layers near or at the surface of the earth containing organic material. |
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| Formed by deposits of other rocks. Example, chalk, feldspar. Tell a lot about the history of the earth. |
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| The upper layer of earth in which plants grow, a black or dark brown material typically consisting of a mixture of organic remains, clay, and rock particles |
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| Adaptation is the evolutionary process whereby a population becomes better suited to its habitat. This process takes place over many generations, and is one of the basic phenomena of biology. |
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| a terrestrial or aquatic flesh-eating mammal; |
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| Consumers are organisms of an ecological food chain that rely upon the feeding of other organisms for survival. |
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| Crepuscular is a term used to describe some animals that are primarily active during twilight, that is at dawn and at dusk . The word is derived from the Latin word crepusculum, meaning "twilight." Crepuscular is thus in contrast with diurnal and nocturnal behavior. ... |
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| Of or belonging to or active during the day; "diurnal animals are active during the day"; "diurnal flowers are open during the day and closed at night" |
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| The type of environment in which an organism or group normally lives or occurs; "a marine habitat"; |
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| Any animal that feeds chiefly on grass and other plants; "horses are herbivores" |
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| Mammals (formally Mammalia) are a class of vertebrate, air-breathing animals whose females are characterized by the possession of mammary glands while both males and females are characterized by sweat glands, hair and/or fu |
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| (ecology) the status of an organism within its environment and community (affecting its survival as a species) is a term describing the way of life of a species. Each species is thought to have a separate, unique niche. The ecological niche describes how an organism or population responds to the distribution of resources and competitors |
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| Having a habit of seeking food or moving about at night; as, nocturnal birds and insects. |
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| an animal that feeds on both animal and vegetable substances |
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| any animal that lives by preying on other animals |
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| animal hunted or caught for food |
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| Any cold-blooded vertebrate of the class Reptilia including tortoises, turtles, snakes, lizards, alligators, crocodiles, |
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| Any animal that feeds on refuse and other decaying organic matter |
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