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States of matter
Distinct forms in which matter can exist, including solid, liquid, gas, and plasma.
Matter
Everything that occupies space and has mass.
Water cycle
Continuous movement of water within the Earth and atmosphere, involving processes such as evaporation, condensation, and precipitation.
Season
Period of the year distinguished by special climate conditions, including spring, summer, fall, and winter.
Desalination
Process of removing dissolved mineral salts from water, often used to obtain fresh water for human consumption or agricultural purposes.