HYDROSPHERE video.

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Presentation transcript:

HYDROSPHERE video

2.-How do water from the Earth and Mars differ? 3.-Why does the sea water contain salt? 4.-How the atmosphere affects the existence of water? 1.-What´s the origin of water? 5.-How water is distributed on Earth?

2 3 4 1

Liquid water is denser than ice

UNIVERSAL SOLVENT

Coastal regions have milder climates than inland regions HIGH HEAT CAPACITY Coastal regions have milder climates than inland regions The body loses of its heat when the sweat evaporates

SURFACE TENSION

CAPILLARITY activity

Plickers

Melting point: 0ºC Boiling point: 100ºC

Uses of water Two ways Consumptive use Non-consumptive use Domestic use Agricultural Industrial Recreactional activities Energy Industrial (used as a refrigerator)

AGRICULTURE AND LIVESTOCK FARMING WATER POLLUTION AGRICULTURE AND LIVESTOCK FARMING DOMESTIC POLLUTION INDUSTRIES

EUTROPHICATION

EUTROPHICATION 1. Phosphates are flushed into rivers and lakes 2.-These pollutants cause aquatic plant growth 3.-Algae blooms, preventing sunlight reaching other plants.. 4.-No photosynthesis is possible. Oxygen in water is depleted. Dead plants are broken down by bacteria. 5.- Oxygen levels reach a point where no life is possible. EUTROPHICATION 1.- What happens with phosphates from detergents and fertilizers? 5.-In the end…… 3.-Why the green colour in the surface? 2.- What do they provoke in living things? 4.- Why do plants die?

Drinking water treatment Waste water treatment Drinking water treatment

video

Biological filtration