The fun ideas on how to get a 7 year old to study spelling words are using Flash Cards and Spelling Word Memory. For more information on Flash Cards and Spelling Word Memory, you can visit the teachmama.com site.
For a girl, cheering the word can be fun. You can create a hopscotch with letters and have your child hopscotch the word. Get out the scrabble letters and have your child spell with them. Shoot at letters with a nerf gun. When all else fails, do Nickel Spelling where your child earns a nickel for every word he/she spells right. We have also made crossword puzzles. :)