HYDROSPHERE (WATER CYCLE (PRECIPITATION (snow , Hail, Water), CONDENSATION…
The water vapour rises, cools down and turns into clouds
Plant lose water
Liquid water on the surface of the Earth flows across the land
THE DISTRIBUTIONS OF WATER
Most liquid water is seawater
Seawater temperature depends on depth
The salt in seawater affect density
The seawater a mixture of mineral salts
movement in which the rich and falls
caused by the gravitational force of the sun and the sun
horizontal movements of water within seas and oceans.
Occurs in the surface of the water
Mainly causes by the wind
water that is stored underground, beneath the surface of the Earth.
Their movement erodes
IMPORTANCE OF WATER
WATER AND HUMAN HEALTH
WATER AND CLIMATE
WATER AND LANDSCAPE
WATER IN LIVING THINGS
HUMAN WATER USE AND POLLUTION
Chemical pollution: .
water contains traces of chemical substances, such as heavy metals or pesticides
water contains floating particles, is radioactive or has been polluted thermally (it has been heated).
water contains bacteria, or other parasites.
moderate salt water
low salt content
is in the form of water vapour
exist as snow and ice
Water treatment facilities
The water is collected
PROPERTIES OF WATER
H2O is made of 2 of hydrogen and 1 of oxygen
BOILING AND MELTING POINTS
liquid state between 0 ° C and 100 ° C
A lot of heat is required to raise the temperature of water and it also takes a long time to cool down.
is capable of dissolving many solids, gases and other liquids
Ice floats on the surface of water.