(Hi there. I am an experienced writer of resources who has written two Computing text books for the Scottish education system. My resources are always designed to be engaging and exciting. As a result they are used in thousands of schools all over the world.) Computational Thinking (learning to think in a logical/problem solving way) is the buzz word in the teaching of programming. By teaching students to predict the outcome of small pieces of code they naturally become better at building their own programs. Although this homework uses Scratch program code, the code is simply a vehicle to ask the questions and the homework may be used with students who have never seen Scratch. Permission has been granted by the Scratch team to uses images of Scratch code. Editable versions of the homework and marking scheme (created in Serif PagePlus X5) have been included in case you wish to adapt the work. Have fun. My students loved these! Please review my work to help others.