Hints about our next unit

We are about to start a new unit is science and I think we are going to have a BLAST! There will be a lot of hands on activities and and a lot of "doing" and thinkiing. Here are a couple of Videos to give you a little hint about the unit. Leave a comment if you think you know what the unit is about and how all three videos are connected.

Hint 1:

 

Hint 2: (a little closer to home)

 

Hint 3: the really cool looking one :)