Periodicity Sites for Assistance
Honors students, while surfing, I encountered these sites to help you in your quest to understand the trends better.
http://dl.clackamas.cc.or.us/ch104-07/atomic_size.htm provides an online quiz with answers.
Also, look at http://dl.clackamas.cc.or.us/ch104-07/ionization_energy.htm
There's also http://misterguch.brinkster.net/miscellaneousworksheets.html where you can click on "periodic trends" to find a worksheet with answers. We are not studying electron affinity in our class so you may omit this one.
I think you'll find these locations to be helpful.