Family trees and evolution

I designed this as a interview lesson but it works as part of the OCR twenty first century science module on life on earth as well. you start with the pictures of a real family tree and look for similarities before moving on to look at darwins finches and his work and the development of phylogenetic trees. It's a good springboard into a discussion about how DNA evidence supports the theory of evolution and can then extend into darwins work, my extension sheet included has an excerpt from the origin of the species describing the finches