Rock Cycle - Lesson 1 – How is igneous rock formed? In this lesson you'll learn about igneous rock. You are going to learn about the structure of the Earth, how to recognise igneous rock and some of the uses of igneous rock. You will also learn how igneous rock is made, using ice and chocolate as a model! You will need a piece of paper and a pencil for this lesson. Click here to go to the lesson – Start with the quiz.