Each of the planets in the Solar System is different than the others. Mercury is very hot, but has no atmosphere. Venus is also hot, but with a very thick atmosphere. The gas planets (Jupiter, Saturn, Uranus, and Neptune) have no solid surface, but have liquid oceans covering the planets. Jupiter has a very strong gravitational pull, which makes things very heavy. Mars is very cold, and has very little gravity. Get out the play dough and have children make an alien which could survive on a chosen planet. Allow them to stretch their imaginations while learning about life on other worlds.

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