Hi Sharon!
Your family of 7 is going to have a fantastic time at Walt Disney World! Not only are there so many great attractions for the whole family to enjoy together, there are also
many age-specific attractions that will have special appeal to your kids.
At Magic Kingdom, there is very little that you won't be able to enjoy as family. Fantasyland is FULL of attractions for your youngest ones to enjoy thoroughly but even big kids (and kids at heart) love these classics! The older kids are sure to enjoy The Mountain Range (Space, Thunder and Splash) as well as The Haunted Mansion.
Over at
Hollywood Studios you'll find more 'age specific' attractions. Your younger set will enjoy Disney Junior - Live on Stage!, the "Honey, I shrunk the Kids" Movie Set Adventure playground and Voyage of The Little Mermaid. The more adventurous kids in the family will thrill to such attractions as Rock 'n' Roller Coaster and The Twilight Zone Tower of Terror. If there are Padawans in your crowd, be sure to sign up for Star Wars: Jedi Training Academy first thing in the morning.
I'd also recommend that you check out the great
entertainment available in Hollywood Studios. Live shows, parades and interactive, lively character dining are a few more of the possibilities to please all ages in your family! I've provided links within this answer for you to view all the details.
I hope you'll visit again if I can assist you further with the planning of your family's Magical vacation Sharon!
Kirsten