2. Alejandro Almagro Daniel Cuéllar

3. Look at this set. How many source of energy can you see? Electrical energy Sonorous energy Luminous energy Kinetic energy Shown: The energy is with us every day, and helps us even in the simple tasks. What would we do without it? Nothing. Imagine a world in wich there wasn't heat (thermal energy) or light (luminous energy) or sound (sonorous energy). Couldn't even light a bulb (electrical energy). Moreover, would haven't medicines (chemical energy). But, who need medications if we couldn't move (kinetic energy).

4. The Sun was formed: And during until:Then begin to get stronger and bigger, until it becomes a red giant. Finally, it will sink under it's own weight and become a white dwarf, which may take a trillion years to cold. Remains of a red giant White dwarf

5. Solar energy is the energy gained by capturing light and heat emitted by the Sun. It is a so-called renewable energy, particularly clean group. Although, at the end of his life, solar panels, which are responsible for capture and transform energy from the sun can pose a contaminating waste. Photovoltaic panels spoil the landscape

6. The photovoltaic panels catch the Sun’s heat and transform it into mechanic work. Then, transform the mechanic work into electrical energy.

7. Some of the advantages of the solar energy are: It doesn’t pollute It doesn’t run out Electricity is cheaper It provides energy where it doesn’t carry the powerline The installation has easy maintenance Etc… Now, we’re going to look the d dd disadvantages.

8. Some of the disadvantages of the solar energy are: Spoils the landscape The installation require much space Its installation is expensive When it doesn’t receive energy from the Sun, it uses its supplies, but it doesn’t generate new energy Etc… Fields of solar panels