Is it ok if I made the font on my science fair project board 22pt? What is the size it's supposed to be?
If it's a title for a paper, then 14 pt. If it's the font under the title giving info, then it should be 14 pt. If it's the title on a big tri-fold board I recommend 76 pt font. If it's information on a tri-fold, then 22 pt is perfect.
That's perfectly fine! The font can be any size, but ideally, something that people can read from far away.