رأفت الجندى
29-10-2012, 12:24 AM
مذكرة علوم للصف السادس الترم الأول ( غاز ثانى أكسيد الكربون )
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http://img268.imageshack.us/img268/349/microsoftworddoc4.gif (http://img268.imageshack.us/i/microsoftworddoc4.gif/)
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http://img802.imageshack.us/img802/9590/microsoftworddoc1s.gif (http://img802.imageshack.us/i/microsoftworddoc1s.gif/)
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http://img689.imageshack.us/img689/3528/microsoftworddoc2g.gif (http://img689.imageshack.us/i/microsoftworddoc2g.gif/)
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http://img268.imageshack.us/img268/349/microsoftworddoc4.gif (http://img268.imageshack.us/i/microsoftworddoc4.gif/)