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Social Science
Water pollution, causes, effects...
fresh or salt water
Course of a river
Ground water: aquifers, well, spring
Bodies of water
Exercises to revise unit 4- social sciences- part 2 about rivers (stages, etc)
Fresh water on Earth
términos de la hidrosfera
states of water
Properties and states of wáter
Ficha para recordar los nombre de los direntes formas de agua en la naturaleza.
Science - Miércoles 27.05