We have many museums where I live and it's great that one is practically in the back yard.
Children need to visit at least two (2) a year. There is so much to learn and now they have so many activities to get children involved in science, space, aviation, and history. Their amazing!
Prices are very resonable, and vary depending on museums; many have member packages that allow your family to go many times for one price. Member packs are great on days they have special activities or Celebrity guests and for all of us homeschool folk; if you go at least twice; it more than pays for it's self. We love the visuals; not to mention a day out.
Bank Of America offers free trips to any museum in your area; check with your banking institution to find out more. Find out if other places you patronize have discount tickets and take the kids to a museum.
They will appreciate and enjoy every minute.