Finding the formula of copper(II) oxide

In this experiment, learners heat copper(II) oxide in a glass tube while passing methane over it, reducing the copper(II) oxide to copper. They then deduce the formula of the copper oxide. The downloadable resources include two levels of student worksheet (scaffolded and unscaffolded) with practical method and follow-up questions. Lesson slides, technician and teacher notes containing answers to the questions on the student worksheets are also included.