I have found that students often conceptually understand transformations, but have a difficult time discerning the pertinent vocabulary. This is an engaging resource for students (especially ELLs) to practice and internalize the vocabulary associated with transformations: pre-image, non-rigid, scale factor, corresponding, and so on. Crosswords provide students an ability to self-check, for if the word doesn't fit they know they need to rethink their answer. I have used this as stations work and as homework. An answer key is provided - Enjoy!