“st.st.cyril and methodius” dimitrovgrad our poll: "what would be our life without water ?

“St.st.Cyril and Methodius” DIMITROVGRAD

Our poll:"What would be our life without water ?

Chemistry our life, our future

Water

WATER is a

chemical compound

at room

temperature

represents a clear

liquid without taste,

color and odor

Solid state of water is called ice, and gaseous - water vapor. The chemical formula is H2O and

“Water, without which we no can”

Covers about 71 percent of the planet

Earth and is concentrated mainly in the oceans andlarge

bodies of water.

97% is salty sea water, 2.4% is contained in glaciers, and 0.6% in

rivers and lakes.

soft water, water with low mineral content;

water, hard water with high mineral content;

distilled water, purified water using a distillation process;

tritiyna-water instead of hydrogen consists of the isotope tritium;

underground water;

mineral-water springs from deep and usually has therapeutic

Types of water

Involved in the production of important chemicals. Water is the most ancient source of energy. Drive the wheels of the water mills, works in modern nuclear and hydroelectric power plants. Is needed in agriculture and industry

water

World Water Day is celebrated in order to increase awareness and action to draw attention to the problems of more than 1 billion people worldwide who lack access to clean and safe drinking water. The day has

been celebrated since 1993 on 22 March and is scheduled in 1992, when the UN General

Assembly passed a resolution. Day was proposed at the

Conference on Environment and Development (UNCED), held in 1992 in Rio de Janeiro, Brazil.

March 22, World Water Day

Water plays a vital role in sustaining life on Earth. In recent decades because of widespread pollution increasing calls for the protection of water quality.

While improving and facilitating access to safe drinking water to some scientists suggest that by 2025 more than half of the world population will be prone to diseases due to water scarcity - a situation known as the water crisis.

Water as disaster

flood

hail

authors:Monica KostovaRosica DiyanovaEvtim NedyalkovCezanne Faim

end