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Speed and Velocity Scalars and Vectors Acceleration The
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acceleration acid alpha particles amount atmosphere ball bonds calcium called carbon dioxide cause cell cent Chapter chloride color compounds contains covalent covalent bonds crystal density distance earth earth's crust earth's surface elec electrical electrolysis electron volts electrons elements energy level equation equilibrium ergy example flow force of gravity galaxy gases glass gram heat energy helium hydrogen hydrogen atom ions iron isotopes joules kinetic energy layers light liquid magnetic field mass measure melting metal mi/hr miles moon motion mountain move nature neutrons nonmetals nuclear nucleus object occur ocean orbit oxide oxygen photosynthesis physical science planets pole positively charged pressure produced protons radioactive rays reactivity series result rock rotation salt scientists sodium sodium chloride solar system solid solution space speed stars structure substances sulfur Table temperature theory tion tube valence vapor vector velocity volcano water molecules wave length weight