This quality planetarium was designed especially for elementary students. Hand-driven, it allows you to rotate the Earth around the Sun, the moon around the Earth, and Venus around the Sun. Shows basic relationships of rotation, revolution, night and day, the seasons and more. By using this planetarium students can more easily grasp the reason for the occurrence of night and day, why only one side of the moon can be seen from the Earth, and how eclipses of the sun and moon occur. Comes with instructional book – The Elementary Planetarium.