Keeping Time with the Skies
This chapter of the Class 8 NCERT Curiosity textbook shows how the sky became humanity's first clock and calendar. Learners track the rising and setting sun, phases of the moon and wheeling constellations, connecting day and night to rotation and seasons to revolution and tilt. Sundials, lunar months and solar years reveal how observations hardened into calendars and festivals. Ancient navigators who steered by stars remind learners that patient sky-watching still underlies the way societies measure time.
Try a free lesson