Passage 1 Rockwatch—The Best Club on Earth 　　If you are a young person and interested in geology(地质学) ，then Rockwatch is the club for you. 　　When You Join New memberships receive a Rockwatch Rox file each. This has the information and top tips you will need to start enjoying geology. It’s designed to serve as your own field notebook as well. 　　In it you will find your： 　　membership card 　　full color mini-map 　　thumbs up guide 　　fact cards 　　Rockwatch Magazine 　　Our lively magazine is mailed to members three times a year. They can read reports and news from around the world，and articles on everything from diamonds to dinosaurs(恐龙) ，earthquakes to erosion(水土流失) . 　　Rockwatch s 　　With each magazine you will receive a Rockwatch s calendar. Rocky activities suitable for families are listed and include road shows and guided walks. 　　The Rockwatch Rock Artist 　　Are you an artist, or a photographer This is your chance to become Rockwatch Rock Artist of the Year and win amazing prizes in our annual competition. 　　Special Offer 　　Rockwatch members can have specially discounted Wildlife Watch membership. Watch is the biggest environmental action club for young people，with 100 groups across the country. You can join both clubs together in the membership form. Rockwatch is a magazine telling about things related to______.