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The lesson illustrates the size of the planets in the Solar System and the huge distances...
Lunar eclipses occur when the Moon passes through the shadow cone of Earth
The Earth is composed of several spherical layers.
There is a spot in the open ocean that is 2,688 km away from the nearest land.
The inner planets of the Solar System are terrestrial planets while the outer planets are...
There are ten national parks in Hungary.
Comets are spectacular celestial bodies orbiting the Sun.
Mercury is innermost and smallest planet of the Solar System.