If you are looking for jobs for teens, you can always start from Hire Teen homepage.
According to Wikipedia, voluntary work is an act for the welfare of others without being paid.
When you do volunteer work, you get paid by getting the experiences, developing skills, and extending your networking.
Your volunteering experiences certainly be a good consideration for any employers because now there is a lot of competition so that those with better qualifications are more likely to get a job.
How to Find Volunteering Jobs
You can volunteer for the library if you are 14 years old.
Try googling “volunteering jobs for 14 years old in library”.
If you are 16 and is in high school you can be teen tutor. If you like animals, you can volunteer at animal shelters near you.
Museums and hospitals are two places that will give you a lot of voluntary work experience.
You can also find volunteering jobs from the following sites: