If you haven't visited Science Spot yet, you really do need to get there.
One of the most popular (at least by my unofficial survey of people I talk to and come in contact with) items found there is the SpongeBob genetics worksheets (scroll about half way down the page). My students LOVE these, and they provide good practice with phenotypes, genotypes, Punnett Squares, etc. And, of course, she includes an answer key with each worksheet.
I just hope SpongeBob remains popular for a long, long time!
Do yourself a favor and get over to the Science Spot!
