While his pals are dressing up as Batman and playing with Lego, Scott is organising sponsored horseback rides and baking cakes to raise money for The Brooke, founded in 1934 by Englishwoman Dorothy Brooke in Egypt to save ex-cavalry horses abandoned there after World War One.
This summer Scott will be doing a sponsored ride on his pony, Queenie, around the perimeter of a 12-acre farm in aid of the charity's Courses for Horses national fundraising initiative to help hundreds of thousands of working equine animals toiling in some of the world's toughest environments.
Scott decided to support the charity after seeing a Brooke advert of a donkey hard at work in a brick kiln carrying a load of bricks on its back. "Scott has always loved donkeys, so this image really upset him," said his mother Lorraine, 43, of Binbrook Garth, Bransholme
"He asked me why the donkey looked so sad, and after I explained about the Brooke and what it did to help animals, he said to me - 'How can I help?' "
Scott's ride for charity will take place on July 29, at Wood Lane Farm in Cottingham. Later that morning, Scott and Lorraine have organised a pony day at the farm for children in the Bransholme area to help raise further funds.
Events include a show and clear round, jumping class, potato race, walk-trot-run demo, and tombola. The children will be charged a minimal fee of £2 to participate in each event, with all the proceeds going to the Brooke.
The day's activities will be rounded off with a barbeque, and sale of cakes baked by four-year-old Scott.
The Brooke now runs a network of mobile veterinary teams in developing countries.