Hi, Kelly! There will be some attractions closed during your stay at Disney:
* Hall of Presidents - closed
* Buzz Lightyear Space Ranger Spin (closed Mar 2 - 9)
* Ellen's Energy Adventure
* Typhoon Lagoon
All refurbishment schedules are subject to change, so there may be others while you are there. One attraction that WILL be open is Space Mountain. This attraction is closing April 19 for an extensive refurbishment, so you might want to catch this ride while you can!
DINOSAUR at Animal Kingdom might be a little intense for your 3 year old. The age recommendation on the website is ages 4 and up. You know your child best, but you might want to preview the ride yourself before taking your little one on this attraction.
Have a great vacation!