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| total distance / total time |
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| speed of an object in a direction |
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| a push or pull on an object |
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| unit descibes magnitude size force |
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| combinenation of forces on an object |
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| a force tat repels two object |
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| covantly bonded compounds |
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| composed of sugar molecules bonded together |
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| an object falling at a consatnt speed |
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| no forces acting on an object |
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| is a curved path an object follows when it is thrown or propelled near the surface of Earth |
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| apparent brightness of a star |
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Definition
| is the exact magnitude of a star |
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| the distnce between light and years |
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| ther location on the hr diagram where maost stars lie it has a a diagonal pattern from the lower right to the upper left. |
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| shows the relationship between the surface temperature |
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| a giantic expolsion in which a massive star collapeses and its outer layers are blasted in space! |
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Definition
| large groups of stars dust and gas |
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| latin for cloud, large clouds of dust and gas that are birthplaces of stars |
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| theory that explains the unverise and how it was made |
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| is a process in which one or more substanes change to make one or more new substances. |
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| a chemical reaction where heat is put out |
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| a solid that is a produst as aresult of a chemicl reaction in a solutuion |
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Definition
| a chemical reaction where heat is needed |
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| law of conservation of energy |
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Definition
| the law that states that energy cannot be created or destoryed but ca be changed from one form to another |
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Definition
| a combination of chemical symbols and # to represent a substance |
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| a substance or molecule that particlipates that forms a chemical reaction |
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| a representation of a chemical reaction that uses symbols to show the relationship between the reactents and the products |
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| a substance that forms in a chemical reaction |
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| law of conservation of mass |
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Definition
| the law that states that mass cannot be created or destroyed |
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| an interreaction that holds atoms together or ions |
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| a composition made of oppositely charged ions |
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| a chemical compound that is formed by the sharing of electrons |
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| a compound that can reversibly change color depending on conditios such as pH |
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| any compound that increaes the number of hydroniom ions whe n dissolveed in water |
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| any compound that increases the number of hydroxide ions when dissolved in water |
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| a value that is used to express the acidty of basicty of a system |
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| the reaction of an acid and a base to form a nuetral solution of water and a salt |
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| an ionic compound that forms when a metal atom replaces the hydrogen of an acid |
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| a force of attraction between objects that is due to there masses |
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| a measure of the amout of matter in an object |
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| a measure of gravity on an object, changes based on location on the universe |
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| the clockwise spin of a planet as seen from above the planets north pole |
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| the counterclockwise rotation spin of a planet or moon as seen as from abovethe planets north pole |
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| a planet that has a deep massive atomoshpere |
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| a natural or artifical body that revolves around a planet |
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| the change in the sunlit area of 1 celestial body as seen from another celestial body |
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| an event in wich the shadow of one celestialbody falls on another |
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| a small body of rock and cosmic dust that follows and elliptical orbit around the sun and that gives off gas and dust in the form of a tail as it passes close to the sun |
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| rocky object tat obrits the sun |
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| a relativly small rocky body that travels though space. |
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