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A demonstration of nearby planets, stars and galaxies.
The lesson illustrates the size of the planets in the Solar System and the huge distances...
An introduction to the relief and hydrography of China.
Learning about the geographic location, capitals and flags of African countries through...
Comets are spectacular celestial bodies orbiting the Sun.
The Earth is composed of several spherical layers.
Learning about the geographic location, capitals and flags of European countries through...
This animation demonstrates the states and largest cities of the USA.