Biosphere

Last February we took a short trip down to Tucson for a few days.

On the first day we went to Biosphere 2.

In front of the biosphere

Terra wanted to carry my diaper bag. It's as big as her.

The kids loved this hands on activity about the water cycle while we waited for our tour:

They could pump balls up the tube on the left and they would fall own through the water cycle via the PVC pipe things on the wall.

Then the tour began

My monkeys in front of a banana tree

In the desert biome

In one of the "lungs" of the biosphere.

To deal with Air expanding and contracting as it cooled or heated they have these expanding rooms, where the ceiling is haning with weights so it will go up or down depending on the air pressure. 

The ceiling dropped as we all went outside, and it was like walking through a storm to get out the door as the air was pushed out with us from the weight of the ceiling.

Our guide was a bit too talkative, so our tour took a  lot longer than they had said and the kids got bored in a few rooms, but it was still cool, we enjoyed it overall and we had fun and learned a lot.