Information about the title: With a balanced mix of core pages and material pages, the thematic issues offer many opportunities for differentiation and action-oriented learning. Core pages present the most important content for reading and understanding in student-friendly language. The material pages include task-based activities and simple experiments for exploration and engagement. The increasing level of difficulty makes them perfectly suited for use in heterogeneous learning groups. Information about the series: The thematic issues build on the well-thought-out concept of the new generation of the successful series "Nature and Technology." With their diverse options for lesson planning, they are consistently aimed at relieving teachers and saving time.