Tenafly Chabad preschoolers learned all about the Solar System They learned about eight planets that circle around the sun. To better understand the Solar System, one child held the sun while the others pretended they were planets and circled that child. Children learned that astronauts fly to space in a rocket ship. They had a blast creating their own rocket ship and even made one for their class pet. They loved counting down, playing in the rocket ship and spending time in their class planetarium.