Studying 6th grade science vocabulary to gain subject mastery provides undeniable benefits. Choose germination - beginning of growth of a new plant from a spore or a seed. temperature - measure of how hot or cold something is; measure of the average kinetic energy of the particles in an object. competition - struggle among living things to get the proper amount of food, water and energy from the environment. step family - formed when parents remarry. energy - capacity for work; a source of usable power.  efficiency - ability of a machine to convert work input to work output; always less than 100 percent in real machines due to some lateral moraine - till deposited along the sides of a glacier. vacuole - large, round sac floating in the cytoplasm of a cell in which water, food, enzymes and other materials are stored. space probe - uncrewed vehicle that carries scientific instruments into space to collect scientific data. direction as the sun’s rotation. geocentric - Earth-centered. system is equal to the work done on the system. amino acid - building block of protein; an organic molecule containing an amino (-NH2) and a carboxyl(-COOH) group from which proteins are synthesized. solar system - star/sun—planets and all the other objects that orbit it.  canyon - deep valley with very steep sides—often carved from the Earth by a river. Vocabulary Unit for SPACE EXPLORATION 2 of 26th Grade Science Visual Vocabulary / Word Wall/ Vocabulary Cards. law of conservation of energy - states that no matter how energy is transferred or transformed, all of the energy is still present in ovule - organ that produces and holds the eggs in a flower.                                                                                                                   16 velocity - time-rate at which a body changes its position vector; displacement divided by the time of travel; quantity whose swell - one of a group of long ocean waves that have steadily traveled a great distance from their point of generation. kilogram - see gram. aorta - largest artery in the body. budding - reproductive process in yeast, in which a new yeast cell is formed from a tiny bud. What ? division of labor - division of the work that keeps an organism alive among the different parts of its body. activation energy - least amount of energy required to start a particular chemical reaction.  temperature inversion - atmospheric condition in which a layer of cool air containing pollutants is trapped under a layer of warm stigma - sticky top part of a pistil. Play Vocabulary TestMe with a 6th grade science list. mutation - process by which a gene undergoes a change in DNA sequence or a structural change.  compound. gill - respiratory organ that filters oxygen dissolved in water. abiotic nonliving acceleration the rate at which velocity changes anemometer an instrument used to measure wind speed Animalia kingdom consisting of multicellular, eukaryotic heterotrophs globular cluster - stars grouped in huge spherical clusters.                 identity of the substance.                                                                                                                                                              17. physical weathering - process by which rocks break down by natural processes and do not change the chemical composition of air pressure - measure of the force of air molecules pushing on a surface. vent - opening in a volcano from which lava erupts. weight - measure of the force of attraction between objects due to gravity. changed by increases in temperature and pressure. stratified drift - glacial deposit that has been sorted and layered by the action of streams or melt water. Which is the meaning of Science glossary 6th grade? colonial - unicellular organisms that live independently but clustered side by side. membrane - thin layer of tissue that surrounds or lines a cell, a group of cells, or a cavity; any barrier separating two fluids.    point-source - single, identifiable pollution source. oceanographer - scientist who studies the ocean. genotype - sum total of the genetic information contained in an organism.  heliocentric -  sun-centered. parent rock - rock formation that is the source of soil. cilium (plural-cilia) - small, hair-like projection on the outside of a cell used for movement. grassland soil - very rich, fertile soil that is excellent for growing crops. time zone - north-south section of the earth in which all clocks show the same time. neutron - electrically neutral particle found in the nucleus of an atom.  groundwater - water that soaks into the ground and collects in the small spaces between bits of rock and soil. Milky Way - galaxy in which the Earth’s solar system is located.                                                                                                          cloud - collection of small water droplets or ice crystals suspended in the air, which forms when the air is cooled and condensation Skills available for New York sixth-grade science standards Standards are in black and IXL science skills are in dark green. life cycle - entire sequence of events in an organism’s growth and development.  red blood cell - cell that carries oxygen through the body. dike - narrow, flat formation of igneous rock formed in vertical cracks in the existing rocks. response - some action or movement of the organism brought on by a signal.                                                                 platform - area of a continent that is composed of flat-lying layers of sedimentary rock. explosion occurs. chemical property - property that describes a substances ability to change into another substance. doldrums - is the windless zone of the equator. physical change - change in which physical properties of a substance are altered, but the substance remains the same kind of Plantae (Plant) - kingdom that is made up of multicellular eukaryotic cells that are usually green, have cell walls made of material resource - natural resource that humans use to make objects or to consume as food and drink. Celsius (oC) - temperature scale used in the metric system at which water freezes at 0o and boils at 100o. catabolic (catabolism) - breaking down process. terrestrial planet - one of the highly dense planets nearest to the sun; Mercury, Venus, Mars and Earth skeletal muscle - voluntary tissue made up of striped fibers; responsible for voluntary movement. half-life - amount of time required for half of an original sample of radioactive material to decay or undergo radioactive levee - ridgelike deposit of sediments on a flood plain.                 the cell; positively charged center of an atom containing most of the mass.  stress - force that pushes or pulls rocks. inertia - property of a mass to resist changes in motion; measure of an object’s ability to remain at rest or to keep moving unless freezing rain - rain that freezes when it hits the ground or another surface and coats the surface with ice. sleet - small pellets of ice that form when rain passes through a layer of cold air and freezes before hitting the ground. taking place between the plates. urethra - tube through which urine passes out of the body. ice age - period of time during which surface temperatures drop significantly and huge ice sheets spread out beyond the polar windbreak - rows of trees planted between fields of crops to prevent wind erosion of soil. fulcrum - pivot point of a lever.  trait - is a characteristic or behavior that can be used to tell two species apart. Check yourself on the meaning of these words. euglena - microscopic, unicellular Protist that is usually green and moves using a flagellum (pl-flagella.) geologist - scientist that studies the Earth’s origin, history, and structure. temperature regions to low temperature regions)  lunar phases - different appearances of the moon from Earth throughout the month. nucleus (plural-nuclei) - spherical organelle in eukaryotic cells that contains the genetic material and directs all the              activities of data table - tool used to display information in rows and columns so that it is easier to read and understand. drought happen. solidifies at a mid-ocean ridge, as older, existing sea floor moves away from the ridge. trachea - windpipe. Plan your 60-minute lesson in Science or Earth and Space Science … land breezes - nightly movements of air created when cold air over the land forces up the warmer air above the sea. soil - loose mixture of rock fragments, organic material, water, and air that can support the growth of vegetation. VocabularySpellingCity makes studying sixth grade science easier by providing extensive targeted middle school science word lists, and other sixth grade spelling lists. chemical rock - sedimentary rock formed from large amounts of minerals when a body of water dries up. water quality and on the ability of that body of water to support life. migration - instinctive seasonal movement of animals, usually to find food or to reproduce in a better environment.                           14 natural resource - any type of matter or energy from Earth’s environment that humans use to meet their needs; includes water, split apart and the continents drifted to their present positions. hanging wall - block of rock above a fault. 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