Essential to life, a person’ s survival depends on drinking water.
Water covers more than 70% of the Earth, only 1% of the Earth’s water is available as a source of drinking.
The freezing point of water is 0 C (32 F), the boiling point is 100 C (212 F).
Water makes up 50 to 90 percent of the weight of living things.
Occurrence of WATER
Water is the only substance that occurs in all three states of matter: solid, liquid, and gas. As a solid, ice, it forms glaciers, frozen lakes and rivers, snow, hail, and frost. It is liquid as rain and dew, and it covers three-quarters of the earth’s surface in swamps, lakes, rivers, and oceans. Water also occurs beneath the earth’s surface as a vast groundwater reservoir. As gas, or water vapor, it occurs as fog, steam, and clouds.
Glossary:
essential- niezbędny, istotny
depends on- zależeć od czego¶, polegać na kim¶
available- dostępny, wolny
source- Ľródło
freezing point- punkt zamarzania
boiling point- temperatura wrzenia
occurrence- występowanie
state of matter- stan skupienia
solid – stały
liquid – płynny
glacier- lodowiec
frozen - zamarznięty
hail- grad
frost- mróz
dew- rosa
swamp- bagno
lake- jezioro
surface- powierzchnia, tafla
vast- rozległy
vaporize- odparowywać
fog- mgła
steam- para wodna
beneath- pod, poniżej
cloud- chmura, obłok
opracowała: Karolina Ziobrowska |
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