carta del 2070

Comment: this video shows how life will be without water in the year 2070 and not have to pass it as? not wasted, that life would be very different habris paca vegetation and water would have no women would have to shave him for not washing hair and conserve water, rivers, dams, lakes, waterfalls, and not exist, would have almost no oxygen for both little vegetation, all would be burned by the coat and opened Osona finish. we must also look after the vegetation does not try to pollute.


-Solution:The solution would be not to waste more water does not leave the keys and opened last bañandonos ytratar least not votandola to preserve, for without it we could not do anything as it does not show the video, and try to take care of the vegetation or polluting resiclando.

matler

what is matler?
Everything that soraun us is made up matler.there air,the animals ,rock plants verything . with cow define matler as all that occupies as spase and can be weigh and flated baloim , we can se that weighed slightly more than un - inflated ballon . when we are studing matler , we use sam basic quantities such as length , surfase , ared , volume, mass, density or temperature . So that we are all using the same units inside we use what is could the international sistem of units .

Dimensions:
Length (l) is the distance betuin two bodies , in (si) units this is measured in metres (m) we also use centrimetres (cm) or kilometres (km) . ew use rules , measuring tapes and so ons when we are measuring length.

Surfase area (s) is the espace ocupied by two dimensions means and with. In (si) units we measuring surfase area is kuare metres (m2) another come units is kuares centrimetres (cm2).

Volume (v): is the space ocupiet by a bodi .if the poten measured in litres eveng in the (si) units is the (m3) the volume or licuis or solides come by measured using measuring sylinder in cas of regular geometry chapes we can use matematical formulas for example: the volume of sphere whit radius are its V5phar=4/3 p,3.

Tidal power

Even the power of the tides can be harnessed to produce electricity.

Similar to the more conventional hydroelectric dams, the tidal process utilizes the natural motion of the tides to fill reservoirs, which are then slowly discharged through electricity-producing turbines. The former USSR produced 300 MW in its Lumkara plant using this method.

Tidal power

Geothermal energy

Geothermal energy is an alternative energy source, although it is not resourceful enough to replace more than a minor amount of the future's energy needs. Geothermal energy is obtained from the internal heat of the planet and can be used to generate steam to run a steam turbine. This in turn generates electricity, which is a very useful form of energy.

geothermal energy

Wind power

Wind power is another alternative energy source that could be used without producing by-products that are harmful to nature. Like solar power, harnessing the wind is highly dependent upon weather and location. The average wind velocity of Earth is around 9 m/sec. And the power that could be produced when a wind mill is facing the wind of 10 mi/hr. is around 50 watts.1

Wind power

Solar power

Solar energy is one the most resourceful sources of energy for the future. One of the reasons for this is that the total energy we recieve each year from the sun is around 35,000 times the total energy used by man. However, about 1/3 of this energy is either absorbed by the outer atmosphere or reflected back into space (a proccess called albedo)1.
Solar energy is presently being used on a smaller scale in furnaces for homes and to heat up swimming pools. On a larger scale use, solar energy could be used to run cars, power plants, and space ships (like the picture you see above) .

Solar power

Energy source

Throughout history people have obterned energy, from their own muscle, animals, the wind. raning water, several types of fuel ( wood, coal, oil, petroleum , etc.. ) and electricity . Of course tradithonal souces of energy are being used Example:- Muscles energy in order to carry out certain tasks - Animals for pullin ploughing the land in the developing countrys -Air currents for sairind both wind farms running water for hydroelectric power stations, rivers boats fuel for cars, gas or coal boyrness electrricity for house hould electrical apliances industrial machineri

Energy source

materials in the lithosphere

Is the surface layer of the solid Earth, characterized by its rigidity. Is formed by the earth's crust and the contiguous zone, the outer of the residual mantle, and "fleet" on the asthenosphere, a layer "soft" which is part of the upper mantle. Is the area where it occurs in interaction with asthenosphere, plate tectonics.
The lithosphere is fragmented into a series of lithospheric or tectonic plates, whose edges are endogenous geological phenomena, such as magmatism (including volcanism), the seismicity or orogenesis. The plates can be mixed or ocean, covered in part by continental crust

materials in the hydrosphere

The hydrosphere is the layer of Earth that includes all waters of the planet, this includes oceans, seas, rivers, lakes and waters. This layer differentiates us from other planets. Scientists estimate that the hydrosphere contains about 1.36 billion cubic kilometers of water in its liquid state, which covers the topography of the Earth. In the hydrosphere can find water in three states: solid (ice), liquid and gas (clouds). The second most common form of water ice. Remember that water is a vital element for the existence of all living organisms, it also helps regulate the temperature of our planet. Hydrosphere was formed millions of years ago, the product of volcanic emissions, which were more frequent in these times. The vapor condenses into clouds, which then caused by torrential rains for millions of years

Materials of the earth`s surtace

materials of the earth`s surtace
* write a list of the materils that you can see in the air, water and on a beach it self .
-salt .
- water .
* what part of the earth can you see it you stand on the seashare ?
Answer// water, ocean, palms, sand, rocks..
*when we walk on sand it oppears to be very soft .
- Are the grains of sand soft or hord?
Answer// when a lame a lot of sand is soft and small seeds
*what is the relationship between the rocks and the sond of the beach.
Answer// that the rock is harder and resistant and sand that is soft and small seeds
the earth is made up solid, liquid and gaseous matter
materials in the atmosphere:
gaseous materials. there are also some liquids and solid materials like the minute drops ot water and ice that make up the cloud. As for as we concerned the most important materials in the atmosphere is the air .
Air is not a gas but a mixture of gases.
It is made up of 78% nitrogen, 21% oxigen and 1% other gases