Here is a formal lesson plan that I designed for our Grade 5 students, to create an animated representation of a food chain. I have previously published a Scratch project for a food chain: A Food Chain in the Northern Temperate Forest. The lesson plan below is intended to help the instructor introduce the project in the classroom step by step, so that the students can learn the logic involved and gain familiarity with the Scratch instruction set. Food chains are part of the Grade 5 Science Standards, and this project could easily evolve into a presentation by the students at the end of the session.