Children's Knowledge Encyclopedia [antikvár]

EARTH AND SPACEEarth is one of a group of planets that orbit the enormous ball of burning gas that is the Sun. Although you might think that Earth is huge, it is only a tiny speck when compared with the vast size of the Universe with its billionsof stars and galaxies. On its surface, Earth is a restless, changing planet, with erupting volcanoes, shaking earthq.uakes and powerful forces that are continuously changing the landscape.