/3 Science Quiz (for 8 to 11 years old): Quiz 6 1 / 3Which gas is used in the production of vegetable oil? Hydrogen Nitrogen Carbon Dioxide 2 / 3PHvalue of the human blood is 4.35 to 4.45 7.35 to 7.45 6.15 to 6.25 3 / 3What is the temperature of the surface of the sun? 5,500 °C to 6,000 °C (degrees Celsius) 3,000 °C to 4,000 °C (degrees Celsius) 4,500 °C to 5,000 °C (degrees Celsius) Your score is 0% Restart quiz Next quiz Please rate the quiz Send feedback