Scholarships for students under age 16
Generally Scholarships are applied on given deadline age. Some of the scholarship has the age limitation. You can find scholarships for your schools and apply for that.
I will tell you an example, FAFSA has no age limit, but there is a cut off age which is under 25.
FAFSA will check your age and verify that you are living with your parents, then it will consider your application according to your family income and calculate EFC(expected family contribution).
Scholarships for Children Under Age 13
I was searching scholarships for children under age 13 and found a very interesting site and came to know, unfortunately, it is hard to find such scholarships, but parents should try searching and make them aware for this early program.
I also found, there are various awards and scholarships for this age children, you will be happy to know about this, some of them are follow
1. Angela Award
2. BattleBots IQ
3. Christopher Columbus Community Service Awards
4. Doodle 4 Google etc
Full list display at http://www.finaid.org/scholarships/age13.phtml