| A | B |
|---|
| atmosphere (atmósfera) | —the thin layer of air between Earth’s surface and outer space |
| axis (eje) | —an imaginary central line around which an object rotates |
| bar graph (grafica de barras) | —a graph that uses bars to represent data |
| behavior (comportamiento) | —an organism’s response to its environment |
| carnivore (carnivoro) | —an animal that eats only other animals |
| characteristic (rasgo) | —a body feature that helps an organism survive in its environment |
| adaptation (adaptación) | —an inherited trait that helps an organism survive and reproduce |
| air mass (masa de aire) | —a large body of air with properties similar to the land over which it formed |
| air temperature (temperatura del aire) | —a measure of how hot or cold the air is |
| altitude (altura) | —an object’s height above Earth’s surface |
| analyze (analizar) | —to examine the parts of |
| Aristotle (Aristóteles) | —a Greek philosopher who made many discoveries in life science, astronomy, and physics |
| assumption (suposición) | —a belief that is based on fact but has not been proven supported by facts |
| condensation (condensación) | —the change in a substance from a gas to a liquid |
| conductor (conductor) | —material that allows energy to travel through it easily or quickly |
| conservation (conservación) | —the careful use and protection of natural resources |
| consumer (consumldor) | —an organism that feeds on other organisms, or a person who buys merchandise |
| control (patrón) | —a feature that does not change in an experiment |
| continent (continente) | —an enormous, slowly moving landmass that floats on Earth’s surface |
| data (datos) | —information collected during an experiment |
| characteristic properties (propiedades caracteristicas) | —properties of matter that do not change |
| circle graph (grafica circular) | —a graph that shows the parts of a whole as the parts of a circle |
| circuit (circuito) | —a closed path through which electricity travels |
| climate (clima) | —the average of all weather conditions in an area through all seasons over a period of time |
| competition (competencia) | —the struggle between two organisms to obtain the same resource in an ecosystem |
| compression (compresión) | —a region in which particles in air are bunched together |
| conclusion (conclusión) | —a judgement |
| decompose | (descomponedor) |
| dissolve (disolver) | —to mix very evenly and separate into particles too small to be seen |
| distance (distancia) | —something that can be measured using a ruler |
| electrical energy (energia eléctrica) | —the movement of charges |
| electromagnet (electro imán) | —a magnet made by sending current through a wire wrapped around a metal object, such as a nail |
| empirical evidence (pruebas empiricas) | — data or conclusions collected through personal observation or experience that can prove that a hypothesis is correct or incorrect |
| energy (energia) | —the ability to cause change orto make things happen |
| environment (medio ambiente) | —an organism’s surroundings |
| erosion (erosión) | —the wearing away of rock or soil by wind, water, or ice |
| evaporation (evaporación) | —the process by which a liquid becomes a gas |
| ecosystem (ecosistema) | —an area where living organisms interact with each other and with the nonhiving things in the environment |
| electric current (corriente eléctrica) | -me flow of electric charges through a circuit |
| evolution (evolución) | —the series of gradual changes in a species over time |
| extinct (extinto) | —no longer living on Earth |
| extinction (extinción) | —occurs when all the members of a species die off |
| food chain (cadena alimenticia) | —a path of matter and energy in a community |
| food web (red alimenticia) | —a series of overlapping food chains |
| force (fuerza) | —a push or pull on an object |
| fossil (fósil) | —an imprint, a trace, or the remains of an organism |
| fossil fuel (combustible fósil) | —a substance, such as coal, oil, or natural gas, formed over millions of years from the remains of organisms and used today as an energy source |
| friction (fricción) | —a force that occurs between objects in direct contact and that opposes motion |
| global warming (calentamiento global) | — the increase in the average temperature of Earth |
| gravity (gravedad) | —the force that causes attraction between objects that have mass |
| habitat (habitat) | —the place where an animal or plant lives |
| hazard (peligro) | —anything that can be dangerous |
| heat (calor) | —a form of energy related to temperature and the random motion of particles |
| herbivore (herbivoro) | —an animal that eats only plants |
| humidity (humedad) | —a measure of the amount of moisture or water vapor in the air |
| hypothesis (hlpótesis) | —a predicted answer to a scientific question |
| Inertia (inercia) | —the tendency of a moving object to keep moving |
| Inference (inferencia) | —a conclusion based on observations and reasoning |
| inherited trait (caracterIstica heredada) | — a characteristic that is passed from parent to offspring |
| instinct (lnstinto) | —a behavior passed from parent to offspring |
| interpret (interpretar) | —to explain what you think certain information means |
| landform (accidente geografico)—one of many different-shaped features found on the continents | such as a mountain |
| larva (larva) | —the early, immature stage in the life cycle of some animals |
| learned behavior (comportamiento aprendido) | —the changed behavior of an organism because of practice or experience it has gained |
| lens (lente) | —an object used to refract light |
| life cycle (ciclo de vlda) | —the stages of development an organism goes through as it grows and develops |
| light energy (energia de la luz) | —energy that travels as a wave and moves through air, empty space, and certain materials |
| line graph (grafica lineal) | —a graph that uses a line to represent change |
| logical reasoning (razonamiento logico) | — a way of thinking that reviews information to draw conclusions |
| map (mapa) | —a type of illustration used to display locations |
| mass (masa) | —the amount of matter in an object; can be measured using a balance |
| matter (materia) | —anything that has mass and takes up space |
| mechanical energy (energia mecánica) | — energy that an object has because of where it is and how fast it is moving |
| metamorphosis (metamorfosis) | —the changes in shape and form some organisms go through during their life cycle |
| microscope (microscopio) | —a tool used to observe very small objects |
| mineral (mineral) | —nonliving natural materials with a reguar structure |
| mixture (mezcla) | —a collection of materials in which the materials do not join together |
| model (modelo) | —a representation of something |
| moon (luna) | —a natural satellite that orbits a planet |
| motion (movimiento) | —change in an object’s position |
| niche (nicho) | —the role an organism has in its ecosystem |
| observation (observacion) | —gathering information using our senses |
| omnivore (omnivoro) | —an animal that eats both plants and animals |
| organism (organismo) | —a complete, individual living thing |
| phases (fases) | —the different shapes the moon appears during the lunar cycle |
| photosynthesis (fotosintesis) | —the process by which plants change carbon dioxide and water into sugar and oxygen |
| physical properties (propiedades fisicas) | —characteristics of matter that can be observed using your senses |
| Plato (Platón) | —a Greek philosopher who believed that everything was made of four elements: earth, water, air, and fire |
| precaution (precaucion) | —something that Is done to prevent an accident |
| precipitation (precipitación) | —any form of water that falls from the clouds to Earth |
| predator (predador) | —an animal that hunts other animals for food |
| prey (presa) | —an animal that is hunted by other animals |
| producer (productor) | —an organism, such as a plant, that can make its own food by photosynthesis |
| recycle (reciclar) | —to reuse materials |
| refraction (refracción) | —the bending of light that occurs when light moves from one material to another |
| resistance (resistencia) | —a physical property that opposes the flow of electric current |
| resource (recurso) | —any material that an organism needs for survival and obtains from its habitat |
| revolution (revolución) | —the movement of one object around another |
| rotation (rotación) | —the turning or spinning of an object around a central line, or axis |
| scavenger (carroñero) | —an animal that feeds on the dead bodies of other animals |
| scientific method (método clentiflco) | —a collection of steps used to explore questions and investigate the natural world |
| support (apoyar) | —to provide evidence in favor of something |
| symmetry (simetria) | —the sameness of form in the halves of an object |
| table (tabla) | —an arrangement used to display a large amount of information |
| technology (tecnologia) | —the special tools that are used to complete an investigation |
| temperature (temperatura) | —a physical property related to heat; can be measured using a thermometer |
| solution (solución) | —a type of mixture in which the ingredients are thoroughly mixed together |
| sound (sonido) | —the vibrations that can be heard |
| sound energy (energia del sonido) | —energy that is caused by things vibrating |
| sound wave (onda acustica) | —an alternating area of high and low air pressure that transmits energy through a medium, such as a solid, liquid, or gas |
| species (especie) | —a group of one type of organism that can mate and produce fertile offspring |
| static electricity (electricidad estática) | — a buildup of charge within an object that occurs when there are unequal positive and negative electric charges within a material |
| testable (ensayable) | —able to be observed and measured |
| theory (teoria) | —an explanation of why something happens in nature |
| time (tiempo) | —a period that can be measured using a stopwatch or clock |
| trait (caracteristica) | —a characteristic or feature of an organism |
| trial (ensayo) | —a single completed investigation |
| validity (validez) | —truthfulness |
| variable (variable) | —the characteristic that is tested during an experiment |
| variation (variación) | —clifferences in members of a species due to inherited traits |
| vibration (vibración) | —the back-and-forth movement of an object |
| volume (volumen) | —the measurable amount of space any substance fills |
| weather (tiempo) | —the condition of the atmosphere at a certain place and time |
| weathering (desgaste) | —a process that breaks down rocks |
