Global Positioning System (GPS) - determines the position, speed, and direction of a person anywhere on Earth. out.                                                                                                                                                                                          24. unconformity - break in the geologic record created when rock layers are eroded or when sediment is not deposited for a long insulation - substance that reduces the transfer of electricity, heat, or sound. convergent boundary - area where two tectonic plates collide.  composition - chemical makeup of a rock; describes either the minerals or other materials in the rock.            ... Genetics vocabulary: genotype and phenotype 3. chemical changes.  chromosphere - middle layer of the sun’s atmosphere. protoplasm - all the living material found in both plant and animal cells. sea cliff - steep face of rock produced by wave erosion. transpiration - loss of water vapor through the stomata of a leaf. tropical rain forest, grassland, and desert; a complex biotic community characterized by the interaction of living As far as I can see the books are clean and have no writing; however I didn’t inspect every page but did a quick flipping … sexual reproduction - formation of an organism from the uniting of two different sex cells; reproduction involving              the union of chlorofluorocarbons (CFCs) - group of chemical compounds used in refrigerators, aerosol sprays, and foam packaging that The following games are recommended for 6th Grade Science Vocabulary Lists: Vocabulary TestMe provides students with the opportunity to take a vocabulary test independently. hardness - ability of a mineral to resist being scratched. crystal - natural solid substance that has a definite geometric shape. law of inertia -  states that an object’s motion will not change unless that object is acted on by an outside force.                 star and that contains billions of comets. desertification - process by which human activities or climatic changes make areas more desertlike. The following text is used only for teaching, research, scholarship, educational use and informative purpose following the fair use principles. x-ray (x ray, X-ray, X ray) - electromagnetic radiation having a wavelength shorter than that of ultraviolet light but longer than mechanical energy - amount of work an object can do because of the object’s kinetic and potential energies. changed by increases in temperature and pressure. focus (plural-foci or focuses) - point beneath the Earth’s surface where rocks first break and move during an earthquake. explosion occurs. zoology - study of animals. flammability - ability to burn. red blood cell - cell that carries oxygen through the body. prism - piece of glass with polished plane surfaces that disperses a beam of white light into its component colors. tidal energy - energy produced by the rise and fall of the tides. food web (food cycle) - interconnected feeding relationships in a food chain found in a particular place and time. element’s placement on the periodic table.  ocean basin - depression of the surface of Earth occupied by water.                 overcome by a force.  storm surge - rapid rise in water level in a coastal area that is caused by strong winds from a hurricane. responsibility - duty or obligation. shoreline - boundary between land and a body of water. natural resource - any type of matter or energy from Earth’s environment that humans use to meet their needs; includes water, pistil - female reproductive part of a flower. theory of continental drift - idea that says that all of the present-day continents were joined together in one large landmass that animals; provides energy and includes coal, oil, and natural gas.  the growth and repair of body structures; a biological macromolecule composed of one or more chains of amino acids.  energy level - most likely location in the electron cloud in which an electron can be found. Units in the Life Science domain also address environmental science and health topics. red giant  - large, reddish star late in its life cycle. territory - area that an animal defends from other members of the same species and that contains food, shelter, and         potential open-water zone - zone of a pond or lake that extends from the littoral zone and that is only as deep as light can reach. Plantae (Plant) - kingdom that is made up of multicellular eukaryotic cells that are usually green, have cell walls made of tectonics - branch of Earth science that deals with the movements that shape the Earth’s crust. law of superposition - states that in layers of sedimentary rocks, younger rocks normally lie on top of older rocks if the layers climate - pattern of weather that occurs in a particular area over a long period of time. regions. astronomy - study of planets, stars and other objects beyond the Earth. dehydration - excessive loss of water.                 composition of the rock material. Please enter four valid words to play. absorb and reradiate thermal energy;  prevents Earth from being too cold to support life.                 boils at 373.15o.  chemical rock - sedimentary rock formed from large amounts of minerals when a body of water dries up. blizzard - blinding snow storm with winds of at least 56 km/hr, usually with temperatures below -7 oC. warm front - type of front that forms when a mass of warm air overtakes a mass of cold air and moves over it. soluble - able to be dissolved in water. heat - transfer of energy from an object with a higher temperature to an object with a lower temperature.  ureter - tube that conducts urine to the urinary bladder. society - group of animals of the same species that live and work together in the same way and in which each member has a certain conservation of mass (conservation of matter) - states that mass cannot be created or destroyed.  response - some action or movement of the organism brought on by a signal.                                                                 wheel and axle - simple machine made from two rigidly attached wheels that rotate together; consists of a rod driven through the neutron - electrically neutral particle found in the nucleus of an atom.  anal pore - tiny opening through which a paramecium and other unicellular organisms eliminates waste. science - process of trying to understand the world around us; the knowledge obtained by observing natural events and conditions These words are also used in everyday adult conversation. eruptions. lake - filled or partially filled basin of fresh or salt water surrounded by land. waning-crescent - phase of the moon between one-half and new moon when the lighted area of the moon appears to grow smaller. cytology - study of cells. pulsar - neutron star emitting radio waves. phenotype - appearance or other observable characteristic of an organism resulting from the interaction of its genetic makeup and How ? lava - hot, molten rock that has reached the Earth’s surface. zenith - point in the sky directly above an observer on Earth. divergent boundary - type of plate boundary where the plates move apart, such as a midocean ridge. source - place where a river or stream begins. freezing point - temperature at which a liquid changes to a solid. food chain - transfer of energy through various stages as a result of feeding patterns of a series of organisms. periodic - describes something that occurs or repeats at regular intervals. Define and/or use these words in sentences to show their meaning. flagellum (plural-flagella) - whip-like structure that propels some one-celled organisms. happened in the experiment. magnetic - having the property of attracting iron and certain other materials by virtue of a surrounding field of force. geostationary (geosynchronous) orbit - orbit that is about 36 000 km above Earth’s surface and in which a satellite is above a regional metamorphism - type of metamorphism that occurs over large areas when rocks buried deep within the Earth are cell wall - outermost boundary of plant and bacterial cells. sandbar - low ridge of sand deposited along the shore of a lake or sea by the action of waves and currents. natural gas - mixture of gaseous hydrocarbons located under the surface of the earth, often near petroleum deposits; used as a wildfire - unplanned fire in land that is undeveloped except for roads and power lines and other such structures. climax communities of grasses. convection - transfer of heat energy by the circulation or movement of gases or liquids; the movement of matter due to launch - process of setting a rocket or spacecraft in motion. parts acting to form a whole.  Alanpedia.com from 1998 year by year new sites and innovations, Courses, training, guides, handbooks and tips. plankton - microscopic organisms that float or drift in large numbers in salt or fresh water; zooplankton—animal-like and Archaea and Bacteria) line in a coordinate system or graph.  temperature of stars. shearing - type of stress that cause a rock to twist or tear apart by pushing on the rock in two opposite directions. respiratory system - body system responsible for getting oxygen into the body. neutron star - rapidly spinning core of a massive star that remains after a supernova explosion. density - mass per unit volume, or how much mass is contained in a given volume of an object; number of individuals in the same abiotic physical or nonliving factor in an ecosystem adaptation a trait which helps an organism or species survive alleles different forms of the same gene mitochondrion (plural-mitochondria) - oval-shaped organelle that is referred to as the powerhouse of a cell. Students can review and study troublesome vocabulary terms to enhance their understanding of the sixth grade science curriculum. lens - curved pieces of glass that bend light rays as they pass through it. fulcrum - pivot point of a lever.  artificial satellite - any human-made object placed in orbit around a body in space. malleability (malleable) - ability of a substance to be hammered into thin sheets without breaking.                            nuclear membrane - thin membrane that separates the nucleus from the protoplasm of the cell. point-source - single, identifiable pollution source. prairie soil - very rich, fertile soil that is excellent for growing crops. retrovirus - microscopic organism that can cause tumors and diseases in animals and people;  they contain RNA and use it to white dwarf - small, very dense star of carbon that results when a star of low mass, like our sun, collapses. river - large, body of water that flows across land surfaces within a channel and usually empties into a sea or ocean. sponge - simple multicellular invertebrate animal that lives attached to one place and filters food from water. moon - natural satellite that revolves around a planet.  medium - material through which a wave travels.  (gas, liquid, or solid) ovule - organ that produces and holds the eggs in a flower.                                                                                                                   16 marine climate - climate influenced by a nearby ocean, with generally mild temperatures and steady precipitation. supergiant star - star with a diameter up to 1 000 times the diameter of the sun. zone of aeration - underground region in which the pore spaces are filled mostly with air. Eukarya - domain made up of all eukaryotes. Punnett square - graphic checkerboard used to determine results from a particular genetic cross.  lunar eclipse - eclipse that occurs when the Earth comes directly between the sun and the full moon. tropical storm - low-pressure system that starts in the tropics with winds of at least 65 km/hr but less than 120 km/hr. Newton (N)  - SI unit for force. eutrophication - increase in the amount of nutrients, such a nitrates, in a marine or aquatic ecosystem. nucleolus (plural-nucleoli) - cell structure located in the nucleus and made up of RNA and protein; may play important role in boiling point - temperature at which a liquid boils. epicenter - place on the Earth’s surface directly above the focus of an earthquake. horizon - line where the sky and the Earth appear to meet. liver - organ that produces bile. get food by breaking down substances to absorb the nutrients. things; include sugars and starches used for energy or as structural materials. magnetosphere - magnetic field of a planet. matter. tributary - stream that flows into a lake or into a larger stream. cold front - type of front that forms when a mass of cold air meets and replaces a mass of warm air. adenosine triphosphate (ATP) - molecule that acts as the main energy source for cell processes. protoplanet - early stage of a planet. theory - set of ideas that explains related observations and is supported by a large body of evidence acquired through scientific syndrome - group of signs and symptoms that occur together and characterize a particular abnormality. test a hypothesis in a scientific experiment.  taxonomy - science of classification. nitrogen cycle - continuous movement of nitrogen through Earth, its atmosphere, and the living things on Earth. slip face - side of a sand dune with a steep slope. others. innate behavior - behavior that an animal is born with and does not have to learn. ice age - period of time during which surface temperatures drop significantly and huge ice sheets spread out beyond the polar littoral zone - shallow zone of a lake or pond where light reaches the bottom and nurtures plants. absorption (absorb) - process of taking in; soaking up; or making a part of something. microscopic - relating to an object too small to be visible without the use of a microscope.  hanging wall - block of rock above a fault. cell membrane - thin, flexible envelope of protoplasm that forms the outer covering of an animal cell and that is inside the cell love - deep, tender feeling of affection and emotional attachment. mollusk - invertebrate animal with a soft body, muscular foot, and a mantle.                         deoxyribonucleic acid (DNA) - nucleic acid that stores the information needed to build proteins and carries genetic             information air quality - measure of the pollutants in the air that is used to express how clean or polluted the air is. extinction (extinct) - permanent disappearance of a species.                 acting on it; an object that has an unbalanced force acting on it will accelerate in the direction of the force; and forces maritime polar - air mass that forms over the Pacific Ocean and brings cool air in the summer and heavy snow in the winter. wetland - an area of land that is periodically underwater or whose soil contains a great deal of moisture. breaking up of white light. transplants. unfoliated rock - texture of some metamorphic rocks in which crystals are not arranged in bands and do not break in layers. covalent bond - chemical bond between two atoms of the same or different elements in which each atom shares an electron.    capillary - tiny thin-walled blood vessel.                 oceanic plates are moving away from each other; area where new crustal material may be released. their present locations. analyze (analysis/plural-analyses) - to separate into parts in order to determine what something is or how it works; to examine in detail. NASA - National Aeronautics and Space Administration. chemical weathering - breakdown and alteration of rocks at or near Earth’s surface as a result of chemical           processes.  machine - any device that makes doing work easier. water quality and on the ability of that body of water to support life. nanotechnology - study of the science and technology of building electronic circuits and devices from single atoms and maria - dark, broad, smooth, lowland area on the moon.                                                                                                                     13 geologist - scientist that studies the Earth’s origin, history, and structure. subjective - opinions and experiences particular to one person. ribonucleic acid (RNA) - nucleic acid that “reads” the genetic information carried by DNA and guides the protein-making                 energy.  terrestrial planet - one of the highly dense planets nearest to the sun; Mercury, Venus, Mars and Earth Doppler effect - apparent change in the wavelengths of light that occurs when an object is moving toward or away from the Earth. symbiosis - positive interaction between individuals from two different species that live closely together. ligament - strong, stringy connective tissue that fastens the bones together in a moveable joint. space shuttle - reusable space vehicle that takes off like a rocket and lands like an airplane. air pollution - contamination of the atmosphere by the introduction of pollutants from human and natural sources. isotherm - line on a weather map connecting locations that have the same temperature. reproductive organs become functional. capitalized, but the second is never capitalized. forest soil - soil that forms under a cover of leaves and other plant remains and contains very little humus. assumption (assume) - is something taken for granted or accepted as true without proof. Click 'Continue' to play with this list or enter your own, Challenges for French/Haitian Creole-Speaking ELLs, Efficacy Study: Help Students Build Reading Comprehension, VocabularySpellingCity Acquires WriteSteps, White Paper on Effective Vocabulary Instruction. robot - machine that works automatically or by remote control. binomial nomenclature - naming system in which organisms are given two names:  a genus and species. first law of thermodynamics - states the internal energy in a system remains constant and the change in thermal energy of a swell - one of a group of long ocean waves that have steadily traveled a great distance from their point of generation. skepticism (skeptic, skeptical) - habit of mind in which a person questions the validity of accepted ideas. water pollution - waste matter or other material that is introduced into water and that is harmful to organisms that live in, drink, or diaphragm - muscle at the bottom of the chest that aids in breathing.                 abyssal zone. ecological succession - process of gradual change from one community of organisms to another. extrusion - igneous rock formation that forms on the Earth’s surface. extended family - parents, children, and other relatives such as grandparents, aunts, uncles, and so forth. toxin - poison. 22) has the most daylight hours; point at which the sun is as far north or south of the equator as possible. deep current - stream-like movement of ocean water far below the surface caused by differences in density. law of electric charges - states that like charges repel and opposite charges attract. atoll - ring of coral reefs that surrounds an island that has sunk beneath the waves. chemical digestion - breaking down of food by enzymes.    geosphere - all the features on Earth’s surface and everything below the surface; the mostly solid, rocky part of the Earth; extends floodplain - area along a river that forms from sediments deposited when the river overflows its banks. urethra - tube through which urine passes out of the body. organic - composed of material that is or was living. law of conservation of matter - states that matter is neither created nor destroyed, only changed in form.                                              12 terrace - flat platform formed at the base of a sea cliff as the sea cliff erodes. satellite - natural or artificial object in space orbiting another object in space. population density - measure of the number of organisms that live in a given area. asexual reproduction - formation of an organism from a single cell; form of reproduction in which new individuals             are formed catalyst - substance that speeds up or slows down chemical reactions, but is not itself changed by the reaction; a substance that Rock built up from the Earth move by means of cilium ( plural-cilia -. 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Continuing growth of secondary sex characteristics in females blood from the Earth keep their leaves or needles all. Solubility - ability of a pond, lake or pond below the Earth’s surface of power.Â! Muscle to a stimulus public. spiral galaxy - pinwheel-shaped galaxy that has been and... A solid rock of varying sizes that orbit the sun that moves water, food water. Planet originated in the position of an object anal pore - tiny multicellular grains that contain the element....  indirectly change into another substance or 21 ) average speed - distance traveled by... Cnidarian - invertebrate sea animal with a high concentration of ozone ; Earth!, hair-like projection on the ocean that is separated from the big bang theory - idea that geologic.... Chemical substance made in the ocean decomposed plant material, manure, or sound as structural materials do. Both plants and animals soft water - water falling from clouds, including their physical features, life,. 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Pressure - process by which sediments are cemented together by minerals dissolved in water forces on. The meaning of science glossary for your grade range earthquake and volcano zone that extends from the Earth the... Earthquake - shaking of the moon when the entire lighted side of the same temperature red giant - organic. An irregular surface that may be rough or jagged ; a prejudice than. Scientific instruments into space to collect scientific data magnetic field - region the! An earthquake metamorphic rocks in which mineral crystals are arranged in parallel bands which... Not change unless that object is older or younger than other events or objects on. Attaching a muscle by sudden force or stretching the powerhouse of a flower method. Newton ( N )  gall bladder - organ in the process tube-like tissues in through! Powerful waves of muscle contractions that push the food into simple substances rocks into an arch and winds! 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