La historia de antiguo Egipto

 

 

Porque me parece interesante la historia de las pirámides, del momifica miento, de los faraones, etc.

water

the clasic definition of water is as follows:

water is a colorless and tasteless liquid.

this refers to pure water.

water is a mixture of various subtances. 

the predominant substances in these mixtures is pure water but other substances are suspended in the solution, usually mineral salts. the great variety of salts that can be suspended in water means that there are different types of of water has more salt content than river water. top water also has salts and other substances which are aded to make it save for drinking.

The Water Molecule

water is made up of molecules consisting of atoms from two elements hydrogen and oxygen. each molecule is made up of one atom of oxygen and two atoms of hydrogen .

notice the since water is in aq liquid state the molecules are sacattered about and can move relatively freely amongst themselves 

how is the create of this blog

atmospheric phenomena

cyclones: are unestable atmespheric situacións. when there is a ciclone over a particular place the 

weather is usually very bad, it's windy and it rains or snow.

anticyclones: are stable situations and the weather is good. when  there is an anticyclone the weather is stable and sunny 

2 wind: the wind is the movement of the air from one place in the world to another. the air moves due to difference4s in temperature and atomspheric pressun between two differents areas in the atmosphere.

the strenght of the wind is measured according to its speed.

gentle winds (breezes) 10 km hr

most winds 20-40 km hr

stronger winds 100km hr

hurricane 200km hr 

3. precipitation: is when water falls, in its liquid or solid state, from the atmosphere to the earth's surface.

rain: is the falling of drops of water from the clouds to the earth's surface

 sanaw: is made up of spongy, white ice crystal called flakes. it snow when temperature is very low.

hailstones: are balls of compact ice with a diameter of more than 5mm.

they are formed in storn clouds which often occur in the summer.

different tipes of clouds

if we look closelyat the sky on different days we can see different types of clouds. the main types of clouds are:

cumulus: clouds look like cotton wool. the top of the cloud is domed and it doesn't usually rain when these clouds are about.

stratus: are low clouds whish are usully seen seen as a low band lying horozontaly to the land. they normally cover the wolw sky or at least most of it.

cirrus: are long, white clouds which are formed in the hieghst layers (even abore 9,000 metres), so they are normally made up of crystals or needles of ice.

stractocumulus: are located between 500 and 2,000 meters (they are low clowds) they are whitish or greys colours.

nimbus or nimbostratus: are clouds wich are located lower layers of the atoms phere. they are very uniform and gray in color and cause rain or snow to fall.