buckets,participants,concerned,at risk,casualties,reduce,sign up,horns,spectators. 1. in danger............... 2.large containers for carrying water............ 3.make smaller............ 4.people who take part in something.............. 5.worried................. 6.write your name on a list............... 7.people who get hurt.............. 8.hard,pointed things on an animal's head................ 9.people who watch something...................