Earlier I posted asking if anyone was from St. Louis that might have ideas other than the few that I knew of off the top of my head that were good learning field trip ideas and it got me thinking what there is to do around where YOU live.
I said in the other post that St. Louis has alot to do with free admittance, some of these places have other activities that you can do but you have to pay for them. IMO, the free stuff is good enough for my kids ages.
FREE: St. Louis ZOO; Soda is $4 but just being able to see the animals for free is amazing. The park itself is kept clean (ish...depends on how busy the day is) and if you get there early enough, some of the areas that usually require admission are free too! If you ever find yourself in St. Louis, I highly recomend that you put the ZOO on your list of "things to do" while you are here! Parking in the parking lot is expensive, but there is a ton of free street parking if you don't mind a hike. http://www.stlzoo.org/
FREE: St. Louis Science Center; Parking is $10 for the whole day, but if you don't mind walking a little bit, you can find free parking not far from here. There are tons of exhibits that are great for any age. I am 30 and I LOVE going to this place. About half is hands on and they have a great theater but it will cost $9 for adults $8 for kids. With all there is to do in this place, you could run around here all day and still not see everything there is to see, or at least remember it all. http://www.slsc.org/
FREE: Missouri History Museum; I have never personally been here, but I hear it is a great place to see. I have friends whose kids went here on school field trips and wanted to go back. I have driven past here before but I am unsure about the parking situation. I am pretty sure there is close free parking for this facility. http://www.mohistory.org/
FREE: St. Louis Art Museum; Again, I have never been here myself, but everyone I know who has been here says it is amazing. Parking is FREE and CLOSE and it has a spectacular view of Forest Park. http://www.slam.org/
There are also TONS of caves that you can visit in the area, but they will cost you anywhere from $8 per person-$20 per person depending on the cave. They have tour guides and one even has a "train" thing you can ride through on. http://missouricaves.com/mo-map.htm
I now live in Central Texas and I heard there is a cave nearby, but not close enough to where I would drive for how much it costs. There is also a drive through safari that I went to around here that I thought was over priced for what you get. They charged per person instead of carload (the first time we went it was $10 per carload) and the drive through was maybe 1/4 mile and we didn't see very many animals, they had a small area that had a TON of goats that you could go in and pet, but they were so crowded in there I would not suggest letting your children go in the pen.
I am glad I have family in St. Louis so it makes the long trip worth it by itself, but the free stuff to do makes it even better. What is there to do where YOU live?