| A | B |
|---|
| Adaptation (adaptacion)- | a characteristic of an organism that increases its chance of survival in its environment |
| atmosphere (atmosfera)- | the layers of gas that surround Earth |
| atom (atomo)- | the smallest unit of a chemical element that can still retain the properties of that element |
| Axis (eje)- | the imaginary line on which an object rotates (e.g. |
| carnivore (carnivoro)- | an animal or plant that consumes or obtains nutrients from animals |
| change of state (cambio de estado fisico)- | a physical change that occurs when matter changes to another state (liquid |
| chemical change (cambio quimico)- | a reaction or a change in a substance produced by chemical means that results in producing a different chemical |
| community (comunidad)- | all the populations of organisms belonging to different species and sharing the same geographical area |
| compound (compuesto)- | a substance made up of a combination of two or more elements held together by chemical bonds that cannot be separated by physical means; has properties unlike those of the elements that make up the compound |
| condensation (condensacion)- | the process of changing from a gas to a liquid |
| Conservation (conservacion)- | controlled use and/or maintenance of natural resources |
| constellation (constelacion)- | a star pattern identified and named as a definite group; usually thought of as forming certain shapes or figures in a specific region of the sky |
| consumer (consumidor) - | an organism that feeds on other organisms for food |
| decomposer (descompositores)- | any organism that feeds or obtains nutrients by breaking down organic matter from dead organisms |
| density (densidad)- | concentration of matter of an object; number of individuals in the same species that live in a given area; the mass per unit volume of a substance in a given area |
| deposition (deposicion)- | layering matter in a natural process |
| earthquake (terremoto)- | the shaking of the ground caused by a sudden release of energy in Earth crust |
| ecosystem (ecosistema)- | an integrated unit of a biological community |
| element (elemento)- | a substance that cannot be reduced to a simpler substance by chemical means |
| energy (energia)- | a quantity that describes the capacity to do work; a source of usable power |
| energy pyramid(energia piramidal)- | a pyramidal diagram that compares the amount of energy available at each position |
| energy transfer (transferencia de energia)- | a change of energy from one form to another (e.g. |
| environment (medio ambiente)- | the sum of conditions affecting an organism |
| equator (ecuador)- | an imaginary circle around Earth ‘s surface located between the poles and a plane perpendicular to its axis of rotation that divides it into the Northern and Southern Hemispheres |
| Erosion (erosion)- | the wearing away of Earth‘s surface by the breakdown and transportation of rock and soil |
| evaporation (evaporacion)- | the process by which a liquid is converted to its vapor phase by heating the liquid |
| experiment (experimento)- | a procedure that is carried out and repeated under controlled conditions in order to discover demonstrate |
| food chain (cadena alimenticia)- | transfer of energy through various stages as a result of feeding patterns of a series of organisms |
| food web (red alimenticia)- | the interconnected feeding relationships in a food chain found in a particular place and time |
| force (fuerza)- | a quality that tends to produce movement or acceleration of a body in the direction of its application; a push or pull |
| fossil (fosil)- | a whole or part of a plant or animal that has been preserved in sedimentary rock |
| friction (friccion)- | a force that opposes the relative motion of two material surfaces in contact with one another |
| fulcrum- | the pivot point of a lever |
| galaxy (galaxia)- | a large collection of stars |
| gravitation (gravitacion)- | a force of attraction between two masses |
| gravity (gravedad)- | the observed effect of the force of gravitation |
| habitat- | a place jinn an ecosystem where an organism normally lives |
| heat (calor)- | a form of energy resulting from the temperature difference .between a system and its surroundings |
| herbivore- | an animal that feeds on plants |
| igneous rock (roca ignea)- | a type of rock that forms from molten or partly molten material that cools and hardens |
| inclined plane (plano inclinado)- | a type of simple machine; a slanted surface that makes it easier to move mass from a lower point to a higher point |
| inertia (inercia)- | the property of a body |
| investigation (investigacion)- | a procedure that is carried out in order to observe a response caused by a stimulus; not a complete experiment |
| kinetic energy (energia cinetica)- | the energy possessed by a body because of its motion |
| lever- | a type of simple machine; consists of a rigid bar that pivots about a fulcrum |
| life cycle (ciclo de vida)- | the entire sequence of events in an organism growth and development |
| light (luz)- | electromagnetic radiation that lies within the visible range |
| liquid (liquido)- | one of the fundamental states of matter with a definite volume but no definite shape moon- a natural satellite that revolves around a planet |
| moon phase (fase lunar)- | a phase that indicates the fraction of the moon ‘s disc that illuminated (as seen from Earth); the eight moon phases (in order): new moon |
| nonrenewable resource (recurso no renovable)- | a resource that can only be replenished over millions of years |
| organ (organo)- | a structure containing different tissues that are organized to carry out a specific function of the body (e.g. |
| organism (organismo)- | any living plant |
| photosynthesis (fotosintesis)- | a chemical process by which plants trap light energy to convert carbon dioxide and water into carbohydrates (sugars) |
| physical change (cambio fisico)- | a reaction; a change in matter from one form to another |
| planet (planeta)- | a large body in space that orbits a star and does not produce light of its own |
| pollution (polucion)- | any alteration of the natural environment producing a condition harmful to living organisms; may occur naturally or as a result of human activities |
| population (poblacion)- | a group of organisms of the same species living in a specific geographical area potential energy- the energy an object has because of its position or structure |
| producer productor)- | an organism that makes its own food from the environment |
| pulley (polea)- | a type of simple machine; a circular lever usually a wheel with a groove where a rope can be placed and used to change the direction of a force |
| reflection (reflexion)- | the bouncing off or turning back of light |
| refraction(refraccion)- | a change in the direction of a wave that occurs as it passes from one medium to another |
| renewable resource (recurso renovable)- | a resource that is replaced or restored |
| resource (recurso)- | any material that can be used to satisfy a need |
| scientific method (metodo cientifico)- | a plan of inquiry that uses science process skills as tools to gather; organize |
| sedimentary rock (roca sedimentaria)- | rock formed from layers of sediment that overlay and squeeze together or are chemically combined |
| solar system (sistema solar)- | a star and all the planets and other bodies that orbit it; the region in space where these bodies move |
| solid (solido)- | having a definite shape and a definite volume; one of the fundamental states of matter |
| solution (solucion)- | a mixture of two or more substances uniformly dispersed throughout a single phase |
| star (estrella)- | a large |
| sun (sol)- | the closest star to Earth and the center of our solar system |
| system (sistema)- | a set of objects |
| tissue (tejido)- | similar cells acting to perform a specific function; four basic types of tissue are muscle |
| topography (topografia)- | the surface |
| universe (universo)- | the total sum of all matter and energy that exists |
| volcano (volcan)- | a vent or fissure in Earth surface through which magma and its associated materials are expelled; generally a mountain-like structure |
| volume (volumen)- | a measure of the amount of space an object takes up; also the loudness of a sound or signal |
| water cycle (ciclo del agua)- | the path water takes as it is being cycled through the environment |
| weathering (romper)- | the natural processes that break down and change rock into soil |
| wheel and axle (rueda y eje)- | a type of simple machine; a circular frame or disk revolving around a central axis |
