10. Eleventh grade was added in September 2014, and the school graduated its first class in 2015-16. There are now frequent exchanges and visits between the two Chadwick campuses. Study abroad In addition to sending students to Chadwick International, Chadwick frequently exchanges students with other schools that participate in the Round Square program. Chadwick students also travel to other schools through additional programs such as ones through the Community Service program. Sperm whale skull fossil On February 5, 2014, a fossil of a sperm whale skull embedded in a boulder of Middle Miocene Era Altamira Shale located on the grounds of Chadwick School was removed to be studied at the L.A. County Natural History Museum. An expert from the museum believed that the skull might be of a previously unknown species. This event was widely covered by Los Angeles area news outlets. Extracurricular activities Debate team Chadwick's debate team was founded in September 2019 and grew to over 30 students in its second year. Chadwick has accrued four team awards in Public Forum Debate tournaments. Athletics Chadwick's main rivals are Polytechnic School in Pasadena, California and Flintridge Preparatory School in La Cañada, California. Chadwick participates in 23 Varsity CIF sports. They include boys' football, tennis, volleyball, waterpolo, basketball, soccer, baseball, golf, and girls' tennis, volleyball, water polo, equestrian, basketball, soccer, golf, lacrosse, softball, and cheerleading. They also include coed cross country, swimming, and track and field. In 2007, Chadwick reevaluated its image and decided that yellow was not an appropriate school color. It also realized that its athletics logo featured a non-native dolphin. After these realizations, the school designed a new blue, grey, and white logo featuring a native and more aggressive-looking dolphin. School newspaper The school newspaper, The Mainsheet, is published in print and online. Online publication was restarted at the beginning of March 2012. Intracurricular activities Robotics In 2006 members of the high school community started Wicked Wobotics, team 2150, a FIRST Robotics Competition team. The team won the Judges' choice award at the 2008 FIRST Robotics competition in Las Vegas, Nevada and was ranked sixth after the qualifying rounds. The FRC team was discontinued in 2010. The remaining team focused on the simpler and less expensive VEX Robotics Competition. In 2011, the school added an optional robotics class to its science curriculum and moved into a larger room previously occupied by the maintenance department. In 2014, the