Scarlett Johansson has made a huge donation to a Sri Lankan school.The Hollywood beauty was so moved after spending time with children in the country's poverty-stricken Dalit community earlier this year she handed over enough money to "financially support them for the next three years". Scarlett said: "The most gratifying opportunity was visiting a Dalit school. The Dalit community in Sri Lanka is considered the lowest status in the caste system, and children as young as four are working the fields."Hopefully the money I have given will financially support the school there for the next three years."The 22-year-old actress travelled to India and Sri Lanka with aid workers from international charity group Oxfam.Jeremy Hobbs, Oxfam's executive director, said: "By supporting Oxfam, Scarlett is taking a stand alongside millions of people globally who are working to overcome poverty."Scarlett is now set to pay a visit to US troops fighting overseas for non-profit organisation USO (United Service Organizations). Her representative said: "She will make the trip in early 2008 and for about a week. We can't give out more information than that for security reasons."On Monday Scarlett was honored with the Icon award at Elle magazine's Women in Hollywood tribute at the Four Seasons Hotel in Beverly Hills.