WATER

 

Water is an important substance as most forms of life need it to live, including us humans

Water is the main constituent of Earth’s hydrosphere

Water covers approximately 70% of the earth’s surface

Chemistry of Water

The scientific formula for water is H2O.

Water is made up of 2 Hydrogen and 1 Oxygen atoms

Water    =    H2O     =    2 Hydrogen 1 Oxygen

Water can be found in all 3 states of matter, gas, liquid and solid

Gas – Steam

Liquid – Water

Solid – Ice

Heat causes water to change from one state to another

Water turns into steam and evaporates when it gets above 100 degrees C

Water freezes at below 0 degrees C and turns into a solid

Water Properties

Water is clear and has no taste or odor

Water Cycle

The water on earth goes through a cycle process

Freshwater can only be replenished through the water cycle

A simple version of this is:

evaporation from oceans and other water bodies into the air and transpiration from land plants and animals into the air.

precipitation, from water vapor condensing from the air and falling to the earth or ocean.

runoff from the land usually reaching the sea.

Water comes in two types:

Salt water and Fresh Water

Fresh water is the water that most life forms, including plants, need for survival.

Fresh water examples are :

Rain, hail, snow, rivers, lakes, and streams.

Salt water unlike fresh water, has an added ingredient: salt.

Salt water examples are:

The ocean

Freshwater

Freshwater is any naturally occurring liquid or frozen water containing low concentrations of dissolved salts and other total dissolved solids.

Fresh water can be…
Ice sheets, ice caps, glaciers, snowfields, icebergs,
Natural precipitations such as rainfall, snowfall, hail
Surface runoffs that form inland bodies of water like wetlands, ponds, lakes, rivers, streams, groundwater contained in aquifers, subterranean rivers and lakes.

Water Pollution

Water pollution is when there are contaminates in a body of water

Water Pollution effects the environment
negatively

The negative impact it has can:
Damage and kill off aquatic habitats
Harm and kill off animals and their habitats
Harm animals and humans by poisoning drinking water

Humans are the primary source of the contaminates that pollute bodies of water.

Studying Water:

Hydrology is the study of the movement, distribution, and quality of water throughout the Earth

The study of the distribution of water is hydrography

The study of the distribution and movement of groundwater is hydrogeology

The study of glaciers is glaciology

The study of inland waters is limnology and distribution of oceans is oceanography

The study of the ecological processes with hydrology are the focus of ecohydrology

The Word Water:

Etymology

The word water comes from Old English wæter, from Proto-Germanic watar

source also of Old Saxon watar, Old Frisian wetir, Dutch water, Old High German wazzar, German Wasser, vatn, Gothic 𐍅𐌰𐍄𐍉 (wato) from Proto-Indo-European wod-or, suffixed form of root wed- (“water”; “wet”).

Also cognate, through the Indo-European root, with Greek ύδωρ (ýdor), Russian вода́ (vodá), Irish uisce, and Albanian ujë.

 

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Water Cycle 

Water Cycle 2

Water Pollution Definition

Water Pollution effects

Water Pollution

Water

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Fountain Bottle