There are three levels within the Cub Scouts.
Family- and home-centered program that encourages the ethical decision-making skills for first-grade (or 7-year old) boys; emphasizes shared leadership, learning about the community, and family understanding.
Family- and home-centered program that develops ethical decision-making skills for boys in the second through fifth grade (or who are 8, 9 and 10 years old); emphasizes character development, citizenship training, and personal fitness.
Family- and home-centered program that develops ethical decision-making skills for fourth and fifth grade (or 10 years old) boys; offers more advanced activities that begin to prepare Webelos to become Boy Scouts.
On the advancement trail, a Cub Scout progresses from rank to rank, learning new skills as he goes. Each of the ranks and awards in Cub Scouting has its own requirements. As you advance through the ranks, the requirements get more challenging, to match the new skills and abilities you learn as you get older.