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The educational resource shows a visual about fixed stars: today we know that the sun is no more than a star which is near to us. Stars like the sun, which are large gaseous spheres, of which 99% is h ...
The educational resource shows a visual about lunar phases: the moon is a rocky sphere about four times smaller than the earth. Its different aspects (as seen from the earth) are known as lunar phases ...
The educational resource shows how the energy is the capacity to produce changes in the environment by doing work or transferring heat. This means that when a body transfers heat or does work, its ene ...
The educational resource shows a Flash animation about the greenhouse effect The Earth is an open material system, because it interchanges matter and energy with outer space.
The educational resource shows a visual about the rotation of the Earth.
The educational resource shows a visual about the signs of Zodiac: every year, the earth goes once round the Sun and as this movement is carried out, from the earth we see the sky in a similar way at ...
The educational resource shows a visual about the solar system: the solar system is formed by the sun and all the astronomical bodies which orbit around it.
The educational resource shows a visual: it is a simulation of the solar system, you can select the planet you want to see and also vary the plane of the orbits.
The educational resource shows a visual about the comets: Comets are small bodies, generally measuring less than 100 km in diameter. They tend to be made principally of ice. When they near the Sun, t ...
The educational resource shows a visual about the planets: in addition to our planet, there are another eight planets travelling around the sun.
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