voda- uvjet Života
TRANSCRIPT
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Mirjana ŠmitPŠ Kerestinec
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Najrasprostranjenija tvar u prirodi.
Voda je tekućina bez :bojeokusa mirisa
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Stanja vode
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- živa bića uzimaju vodu iz prirode
- važan je sastojak njihova tijela
- pomaže stvarati i raznositi hranu u tijelu
- živi organizmi sadržavaju mnogo vode
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Ledište vode- 0 °C
Led je lakši od vode , pa na njoj pliva.
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Tekuće stanje vode
- voda je pri sobnoj temperaturi u tekućem stanju
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Vrelište vode – 100°C
Voda zagrijana na 100°C vrije i naglo prelazi u plinovito stanje- vodenu paru.
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KRUŽENJE VODE U PRIRODI
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DAN VODA- 22. OŽUJAK
- štednja vode- sprečavanje onečišćenja voda
Na koje načine štedimo vodu?