I don't know, but I sure hope so!  My son is TOTALLY girl-crazy, with one girl in particular!  I tried to tell him that girls have cooties, but he didn't buy it.

Yes it is trust me I'm a sixth grader and last year every boy in the school had acrush on a girl

Of course it is normal for children of this age to think that they are in love with a girl because it is a subject that is so prevalent in mainstream media today like television; cartoons that kids watch on a daily basis. They can think that they know what it is, but they can't understand what it means or how it really feels. Look at Justin Bieber and his songs that are aimed at the preteen demographic, and what is being said in those songs. These days, the only way to help kids understand relationships is to sit down and talk with them and explain to them how you view the subject of love. Share your experiences, and try to talk in a manner which your child can understand what you are trying to express. There is no substitution for a parent sitting down and spending quality time with their child and talking about life. Talk about your feelings, and explain to them that no matter what Spongebob Squarepants goes through, it's not like what really happens in life. Love is a strange topic to bring up because it is so different for every person, but talking about it might make your child think differently about what is going on in their own life.