The question asked various competitive exam

1. Organism make their food themself is called?
2. Why Marble tiles is cooler then wooden tiles ?
3. Why blanket make you warm in winter night?
4. Which factor will same when we change the quantities of substance ?
5. Why food make sooner in pressure cooker?
6. What is normal temperature of body in Celsius, Fahrenheit and kelvin?
7. Which metal is liquid at room temperature?
8. Why Mercury is used in thermometer?
9. When lunar eclipse occur ?
10. When solar eclipse occur ?
11. The product of neutralization reaction is always in which nature?
12. A substance change colour yellow to red when turmeric is added in it . Name the type of substance?
13. Boiling point of water at hills must be ?
14. Why rainbow form?
15. What is the temperature at the surface of sun?
16. Name the nearest planet to sun?
17. Which planet is the smallest planet of universe?
18. Which planet is largest planet of universe?
19. Why sharp blade help to cut vegetable easily?
20. Name the colour of sky which it looks form space ?
 21. Who give the theory of gravitation?
22. Who discover dynamite?
23. Which day is celebrated as science day in India?
24. What is the boiling point of water in Fahrenheit?
25. Best donor blood group ?