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http://www.rinya.maff.go.jp/kids/
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http://www.jishin.go.jp/kids/
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http://www.letsgo-jare.com/
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http://www.mlit.go.jp/river/kids/
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http://www.tohoku.meti.go.jp/geo/
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http://sakuya.ed.shizuoka.ac.jp/kodomoss/
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iStone
http://www.istone.org/
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Looking at the Earth from Space
http://homepage3.nifty.com/satimage/
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