We think..

Here are the results by class of the we think activity.  Remember the bottle started out flexible and then grew harder to squeeze as the fizz keeper was pumped. If we opened the cap it sounded like a new soda bottle had just been opened.
3rd period - Pressure increased. Most think volume remained the same and that temperature did too. (A few think temp changed and increased.) The number of moles increased.
4th period - Pressure was increased. Volume is split between increasing and staying the same. One group votes for temperature increasing and number of moles increasing while one says these stay the same.

7th period - Pressure was increased. This is the only one we agree one, but most students think number of moles increased. For volume and temperature some think increase and some that it didn't change.

What do you think now?