4Every four years, athletes gather to test their strength and speed against the world's best at the Summer Olympic Games. This updated series explains the most popular Olympic sporting events to young readers who are eager to watch the excitement. Includes a table of contents, Q&A boxes, glossary, further resources, and index. This updated book for elementary readers presents information about the history and rules of gymnastics featured at the Olympics, including artistic, rhythmic, and trampoline. Includes a table of contents, Q&A boxes, glossary, further resources, and index.