I work at amf I work about 20 hours a week. I've been only working there for 3 months I have 2 kids a 6 year old and a 2 year old will I get money back

Yes, you should file your tax return as you will get earned income tax credit and child tax credit.

Agreed; if you give us specifics as to how much money you earned, we can estimate your refund.

I don't know but this is my first job been working 3 month. In the beginningi worked 10 hours a week now I work 20 hours a week 7.50 a hour. People have been telling me I would get $1500 back per child is this true??

Yes, the combination of the Earned Income Credit and the refundable portion of the Child Tax Credit CAN generated refunds of about $1,500 per child.

If you check out my profile (duoble click on my name above) and send me your latest paystub via scan-and-email, I can do an estimate of refund for you.