Hard SOF National Science Olympiad (NSO/ISO) · NSO Level 1 · . Sample Which method can separate salt from saltwater? A Magnetic separation B Evaporation C Sieving D Handpicking Submit Answer Show Explanation Mark as Completed Mark as Important Mark for Review
What is the SI unit of gravitational force? SOF National Science Olympiad (NSO/ISO) . Easy · Physics · 2026 See Explanation
An atom of Sodium has atomic number 11 and mass number 23. How many neutrons does it contain? SOF National Science Olympiad (NSO/ISO) . Easy · Chemistry · 2026 See Explanation
What is the end product of anaerobic respiration in human muscle cells during vigorous exercise? SOF National Science Olympiad (NSO/ISO) . Easy · Biology · 2025 See Explanation
A body starts with an initial velocity of 2 m/s and accelerates uniformly at 5 m/s² for 2 s. Find its final velocity. SOF National Science Olympiad (NSO/ISO) . Hard · Physics · 2025 See Explanation
A sound wave has a frequency of 500 Hz and a wavelength of 0.5 m. Find its speed. SOF National Science Olympiad (NSO/ISO) . Hard · Physics · 2024 See Explanation