Get inspired by viewing what others have done.
https://www.youtube.com/watch?v=4z7gDsSKUmU
http://inspiremykids.com/2016/10-year-old-mikaila-ulmer-building-a-lemonade-empire-to-save-bees/
http://www.pbs.org/newshour/rundown/student-reporting-labs-giving-back/
https://kidscanmakeadifference.org/what-kids-can-do/