Calling all Science Buffs

We are knee deep in preparing for Summer Reading around here.  Our theme this year is "Fizz, Boom, Read!" with an emphasis on science. 

Do you have any ideas for science projects or experiments we can do?  Do you know of any cool gadgets that we need to get? 

We've already purchased a Newton's Cradle, and have a Pendulum Wave on order.  The Newton's Cradle has already been popular with kids and adults alike.

 

We also plan to have a ladybug farm and perhaps experiment with moss graffiti!  Let us know your ideas.  We need as many as we can get.