About 4 hours.
About 3 1/2 hours for my group to do the whole thing. We went to mostly everything, even the outside area. We only attended one class/event that took about 45 minutes (we did the star show at the planetarium). If you were to attend more classes, it may take longer.
Three hours
Most of the day. We went to the planetarium and the omnimax. We were still not finished when it was time to close.
3 hours
We went specifically to see the Mummies of the World exhibit. We were in there almost 1 1/2 hours and then another 2 hours for the rest of the science center.
2 hours without kids. If you brought kids you could probably spend 3 of 4.
About 2 and half hours
5 h
2hrs
anout 2 hours but we had a small child with us.
A couple hours usually. If you have hyperactive kids, this will wear them out.
2 and a half hours last time we went, yet it's a great all day experience. I hope they have a Pink Floyd laser light show again!
We were there open until about 430pm
The average visit to the Saint Louis Science Center is about 2 hours.
We spent about an hour and a half or so. We are a family of five as well, two little kids.
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