This colorful Centers for Disease Control site encourages young girls to take steps to promotes skeletal health. The site helps young girls understand the important contribution weight bearing physical activity makes to their health. Facts about bones and the importance of calcium to their development are given. There are interactive activities, such as a skeleton that shows the names of bones when the mouse is rolled over the words. Quizzes, interactive games, and relevant web sites are given to help girls learn the facts and test their ability to use the information to make informed decisions.