This place can easily vassilate between 2 and 5 st...

This place can easily vassilate between 2 and 5 stars based on crowds. You couldn't pay me to go on a rainy Saturday but if you can get there with your kid on a quiet weekday its great. The staff is very helpful and knowledgeable. They do a really good job of keeping the place tidy and the exhibits ready to use unless there is an onslaught of kids.