cementation - process by which sediments are cemented together by minerals dissolved in water to form sedimentary rock. principle of uniformitarianism - idea that geologic processes that occurred in the past can be explained by current geologic solar cell - device that converts the energy of sunlight into electrical energy. anticline - upward fold in a rock layer. ocean current - movement of ocean water that follows a regular pattern. extended family - parents, children, and other relatives such as grandparents, aunts, uncles, and so forth. (June 20 or 21)Â net force - combination of all of the forces acting on an object. manufacture and transport of proteins. solubility - ability or tendency of one substance to dissolve in another at a given temperature and pressure. paramecium (pl-paramecia) - microscopic, unicellular Protist that move by means of cilium (pl-cilia.) echinoderm - invertebrate sea animal with a spiny skeleton, a water vascular system, and tube feet. hard water - water containing large amounts of dissolved minerals. rock cycle - continuous changing of rocks from one kind to another. abyssal plain - large, flat, almost level area of the deep-ocean basin. source - place where a river or stream begins. READING | GRADE: 1st, 2nd, 3rd Print full size thermal pollution - temperature increase in a body of water that is caused by human activity and that has a harmful effect on grasslands - temperate and tropical regions that receive between 25 cm and 75 cm of precipitation each year and are dominated by control (controlled variable) - standard used for comparison in an experiment; experiment run exactly the same way as the supergiant star - star with a diameter up to 1 000 times the diameter of the sun. skepticism (skeptic, skeptical) - habit of mind in which a person questions the validity of accepted ideas. swamp - type of freshwater wetland that has spongy, muddy land and lots of water. solvent - substance in which another substance dissolves. radar - is an electronic system used to locate and identify distant objects. magnetic pole - one of two points, such as the ends of a magnet, that have opposing magnetic qualities. Click on "6th grade Science vocabulary" to go back to the vocabulary home page. spinoff - commercialized product incorporating NASA technology or âknow howâ that benefits the public.Â microscope - instrument that produces an enlarged image of an object. test a hypothesis; includes all components of the scientific method.Â density - mass per unit volume, or how much mass is contained in a given volume of an object; number of individuals in the same subsidence - sinking of regions of the Earthâs crust to lower elevations. air quality - measure of the pollutants in the air that is used to express how clean or polluted the air is. exhale - to breathe out. diffraction - bending of waves around a barrier (or obstruction) or traveling through an opening.Â Â refracting telescope - optical telescope in which a series of lenses are used to focus and magnify light from the stars.Â velocity - time-rate at which a body changes its position vector; displacement divided by the time of travel; quantity whose radioactive decay - process in which a radioactive isotope tends to break down into a stable isotope of the same element or 1. petrologist - scientist who studies rocks and their mineral composition. binomial nomenclature - naming system in which organisms are given two names:Â a genus and species. (September 20 or 21) sprain - tearing or twisting of a ligament or muscle. communications satellite - artificial satellite that beams television programs, radio messages, telephone conversations, and other Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â information all over the world. topographic map - flat map showing contour lines that represent the height and depth of features on the Earthâs surface. theory of continental drift - idea that says that all of the present-day continents were joined together in one large landmass that compound machine - combination of two or more simple machines. landform - physical features on Earthâs surface. FlashCards provides students the opportunity to see and hear each word spelled and then read aloud. ice core - long cylinder of ice obtained from drilling through ice caps or ice sheets; used to study past climates. adenosine triphosphate (ATP) - molecule that acts as the main energy source for cell processes. tentacle - long, slender, flexible extension of the body of certain animals that are used to touch, move, and hold. elevation - height of an object above sea level.Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â particle - very small piece of matter such as an atom, molecule, or ion. day - time required for Earth to rotate once on its axis. Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â the cell; positively charged center of an atom containing most of the mass.Â attachment; skeleton inside the body. thunderstorm - usually brief, heavy storm that consists of rain, strong winds, lightning and thunder. astronomy - study of planets, stars and other objects beyond the Earth. bar graph - tool that uses bars to show the relationships between variables; can be horizontal or vertical and can display any sill - sheet-like mass of igneous rock. luminosity - actual brightness of an object suchÂ as a star. storm surge - rapid rise in water level in a coastal area that is caused by strong winds from a hurricane. electrons; the smallest unit of a chemical element that can still retain the properties of that element; building block of full moon - phase of the moon when the entire lighted side of the moon is visible. predator - organism that preys on and consumes animals; usually an animal.Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Neptuneâs orbit. Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â more atoms that are chemically bonded.Â force - quality that tends to produce movement or acceleration of a body in the direction of its application; push or a Â Â Â Â Â Â Â pull; can be anatomy - study of the structure of the body. Mesosaurus - extinct reptile that swam in freshwater ponds, lakes, and rivers. scatter plot graph - tool that displays data from two related sets as ordered pairs; shows a set of similar things. sediment - small pieces of rocks, shells or the remains of plants and animals that have been carried along and deposited by wind, niche - unique position occupied by a particular species in terms of the area it inhabits and the function it performs within the inference (infer) - conclusion based on an observation. alveolus (plural-alveoli) - grape-like cluster of tiny âballoonsâ in the lungs. halophile - Archaea that tolerate salty surroundings. ESL, ELL, Special Education.Word, definitions, and pictures following the STREAMLINED Texas TEKS. atmosphere - mixture Â of gases that surround Earth, other planets, moons or stars. Charlesâs Law (Charlesâ) - law stating that the volume of a fixed amount of gas varies directly with the temperature of the gas. chlorophyll - green substance needed for photosynthesis. latitude - measure of distance in degrees north or south of the equator. Â Â qualitative - description that does not use measurement or numbers. cosmology - study of the origin, properties, processes, and evolution of the universe. second and has varying wavelengths and frequencies; waves generated by the oscillation of a charged particle and sun - closest star to Earth and the center of our solar system.Â biomass - plant material, manure, or any other organic matter that is used as an energy source. magnetosphere - magnetic field of a planet. transpiration - loss of water vapor through the stomata of a leaf. thermocline - area of rapid temperature change in the ocean.Â Incubation period - time of year when the roof of a substance to dissolve in water it. Motion of a land area not far above sea level can exist ( about trillion. Key - system for identifying organisms by using pairs of descriptions 65 km/hr but less 25. To contract or shorten ; a measure of the universe definitions are straightforward provide! 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