Welcome to the Disney Parks Moms Panel Angel!
I love that you are researching and planning ahead. I know exactly how you feel. I treasure the time with my boys and don't want to miss a minute of seeing them experience the attractions for the first time at Disney World.
Your little one will be able to ride any of the attractions with no height requirements and there are lots of attractions without height requirements so you won't feel left out. Here is a
link to attractions that Guests of any height may enjoy. Now keep in mind that doesn't mean that all of these attractions are appropriate for every Guest. Haunted Mansion is really dark and may frighten some children. You know your children better than anyone so use your own discretion with your kids. If you need any details of any attractions, I'm happy to provide them for you.
There may be some attractions that your 7 year old is able to do that your 5 year old is not quite ready for during your trip. To find height requirements, you can use the link above and then the filters under the "Height" option.
For those attractions with height requirements that you and the other adults in your family want to enjoy, you can use
Rider Switch option.
I recently answered a question for another Guest with some
tips for traveling with a little one that you may find helpful as well.
Please feel free to visit again with all of your questions. We're thrilled to assist you!
Wishing you minnie magical memories :-) Allison V.