Help, Please!

I'm trying to put together a packet of "English Lessons" to send home for the summer for the kids in Zoe's and Maya's classes. I need sheet music for the songs we've been singing:

Twinkle, Twinkle Little Star
If You're Happy and You Know It
I Like to Eat Apples & Bananas
Head, Shoulders, Knees & Toes

I've looked online, and though I can find lyrics readily enough, I can't find sheet music (for piano preferably, but I'm not picky!). If you know of a link, would you post it in the comments, please? If you have them in digital form, could you email them to me? Thanks!