Extreme sports are some of today's hottest sports. They are described as "extreme" because they often involve high risks and loads of creativity. Some of these sports are dangerous and some are strange, but all of them are exciting for athletes and spectators. Series: Extreme sports no limits! Interest Level: 3-6 Reading Level: 6.1 ATOS Book Level: 6.5 AR Interest Level: MG AR Points: 1 AR Quiz: 78640EN Guided Reading Level: Q.