We send young people of different nationalities on expeditions around the world.Our volunteers get the chance to work with local people to learn about different cultures. There are ten expeditions every year.Each expedition lasts for ten weeks and takes 150 culunteers.They go to countries such as Chile,Namibia,Mongolia and Viet Nam.Some of our volunteers work with local people to provide facilities,for example,building schools.Others work in national parks or help scientists to do environmentel research. These adventurous,young people come from all over the world.To become a volunteer,have to be between 17and25;you have to speak some English and you also have to be enthusiastic,flexible ang hard-working members of a team. ----------- Who goes on the expeditions? How many expeditions are there every year? How long does each expeditions last? What do the volunteers help scientists ? Which language must we know to become a volunteer english ?