Author: Excelschool SolutionsExcelschool Solutions (ESS) is the premier learning division of Excel Soft technologies catering to the K12 segment. ESS endeavors to provide educational institutions with learning tools and technologies to enrich their pedagogical model. With a vast array of curricular and co-curricular solutions, ESS partners with over 8000+ schools worldwide in redefining the context of learning. ESS engages with institutions across the spectrum with learning aids, learning events, projects, lesson packs, activity labs, teacher training and audits. These solutions are closely planned and delivered by a 50 + member team comprising of research scholars, PhDs, M.Eds. as well as very experienced teachers.Series Editor: Dr Geetha IyerFormer Head of Sahyadri School KFI, Pune. She is an author, a naturalist and consultant in the twin fields of education and environment. She is a curriculum specialist with many years of experience in concept development and regularly conducts workshops on all aspects of teaching science.