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Introduction
1 pag.
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Salt water or fresh water?
1 pag.
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The hydrosphere
2 pag.
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The water cycle
2 pag.
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The types of water on Earth
2 pag.
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Water and living things
2 pag.
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Show what you know
2 pag.
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The characteristics of the ocean and seas
2 pag.
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The characteristics of lakes
2 pag.
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Human activity and water
2 pag.
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Show what you know
2 pag.
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Science Lab
4 pag.
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Activities
10 pag.