The field of mechanics is an important topic in the curricula of lower secondary education. To continuously engage young people, physics is best explained through everyday phenomena - just like this volume: How does a pump work? Why do hot air balloons rise? How do you calculate the stopping distance? Topics such as friction (What is the role of a ball bearing?) and properties of bodies (Why can submarines sink and surface?) are also addressed. All worksheets are designed for students to explore the content through self-discovery. The tasks are suitable for differentiation. Guidelines for planning and conducting lessons, as well as solutions, make preparation easier for teachers.