Earth Essay for Kids from class 3 to 6 This essay on earth is for kids from class 3 to 6 to understand about our planet. June 18, 2020. 0 3,924 3 minutes read. E arth is the only planet of the solar system that provides all the necessities required to survive. In short, it is the only planet that has life on it. It is the third planet of the solar system and the fifth largest planet among all.