"You can almost imagine what it would be like without education," she said. "I thought people would want to help when they saw what Afghan children were going through."
Organising a fundraising drive was not a daunting prospect for the Year 6 student at South Hampstead junior school.
Alongside friends, she has raised money for victims of the recent floods in Mozambique and earthquakes in India. On her own, she arranged a bring-and-buy sale in support of Help The Aged.
Rehana researched the history, geography and politics of Afghanistan in her spare time and presented her findings at a school assembly.
She then produced a quiz for Years 5 and 6 on Afghanistan. Each pupil was asked to return the quiz with a donation. For youngerchildren, Rehana set up a stall at her school open day, requesting donations in exchange for entry to a colouring competition. The winners of both contests were given a UNICEF teddy bear.
Have a go at Rehana's quiz in this week's Kite Flyer on www.tes.co.ukafghanistan