Humming Bird Science Olympiad (HSO) Class 6: syllabus, dates and exam pattern (2026–27)

Humming Bird publishes its Class 6 science syllabus as a flat list: Food, Components of Food, Materials, Sorting Materials into Groups, Separation of Substances, Living World, Body Movements, Getting to Know Plants, The Living Organisms – Characteristics and Habitats, Motion and Measurement, How Things Work, Electricity and Circuits, Fun with Magnets, Light, Air Around Us, Reasoning and Aptitude, and HOTS Based Questions — with four of those entries (Food, Materials, Living World, How Things Work) being headings printed at the same level as the topics under them. Read the actual topic names and something becomes obvious: they are the chapter titles of the pre-2023 Class 6 NCERT science book, almost word for word. This is the third body on this site publishing a Class 6 science syllabus written against a book that no longer exists, after CREST and Indian Talent Olympiad — and at Class 8 the same bodies' lists match the current book, so this is a fact about how thoroughly Class 6 was rewritten rather than about olympiad bodies being careless. The practical consequence here is smaller than at the other two: two topics on Humming Bird's list have no chapter in the 2026-27 Curiosity book — light, and electricity and circuits — against four each for CREST and ITO, because Humming Bird's list is shorter and never names the cell or fibre-to-fabric. Both are physics and both moved to Class 7, where they are chapters 11 (Light: Shadows and Reflections) and 3 (Electricity: Circuits and their Components). A Class 6 child revising only Curiosity has covered nine of the eleven topics on this list. On our own side the honest position is that Grade 6 science is the one cell in Classes 6 to 8 where our curator taxonomy carries no olympiad-scope topics beyond the book at all, so we make no claim to close those two gaps — a Class 7 chapter read a year early is what closes them. Going the other way, Curiosity now teaches temperature, the states of water, natural resources and the solar system, none of which Humming Bird names for Class 6. The mapping above is ours, not the body's.