General science: fundamentals of physics chemistry and biology - One Line Questions

1. What is the pH of pure water? — 7
2. What is the chemical symbol for gold? — Au
3. What is the chemical symbol for silver? — Ag
4. What is the common name for the chemical compound dihydrogen monoxide? — Water
5. What is the SI unit of resistance? — Ohm
6. What is the SI unit of electric charge? — Coulomb
7. Which gas is produced during photosynthesis? — Oxygen
8. Which gas is used by dentists for anesthesia? — Nitrous oxide
9. Which gas is essential for respiration in humans? — Oxygen
10. What is the main function of white blood cells? — Fighting infection
11. What is the basic unit of heredity? — Gene
12. What is the SI unit of temperature? — Kelvin
13. Which part of the ear is responsible for balance? — Semicircular canals
14. What is the process of a liquid changing into a gas called? — Evaporation
15. What is the process of breaking down food into simpler substances that the body can absorb called? — Digestion
16. Which force keeps planets in orbit around the sun? — Gravitational force
17. Which element is known as the 'universal solvent' due to its ability to dissolve many substances? — Water
18. What is the process of a gas changing into a liquid called? — Condensation
19. What is the main function of red blood cells? — Carrying oxygen
20. What is the term for the change of state from solid to liquid? — Melting
21. What is the chemical formula for sulfuric acid? — H2SO4
22. What is the chemical symbol for iron? — Fe
23. Which metal is liquid at room temperature? — Mercury
24. What is the SI unit of force? — Newton
25. What is the SI unit of power? — Watt
26. What is the SI unit of pressure? — Pascal
27. What is the chemical formula for common salt? — NaCl
28. Which type of energy is stored in a stretched rubber band? — Potential energy
29. Which part of the plant is responsible for absorbing water and minerals from the soil? — Roots
30. What is the chemical symbol for lead? — Pb
31. What is the SI unit of luminous intensity? — Candela
32. Which organ in the human body is responsible for pumping blood? — Heart
33. What is the process of cell division that results in two identical daughter cells? — Mitosis
34. What is the process by which solid changes directly into gas called? — Sublimation
35. What is the process of a liquid changing directly into a solid called? — Freezing
36. Which law of motion states that for every action, there is an equal and opposite reaction? — Newton's Third Law
37. Which of the following is the most abundant gas in Earth's atmosphere? — Nitrogen
38. Which gas is produced in large quantities during the burning of fossil fuels and contributes to global warming? — Carbon dioxide
39. Which part of a plant conducts water from roots to leaves? — Xylem
40. What is the function of the mitochondria in a cell? — Energy production
41. Which type of cell is responsible for producing antibodies? — B lymphocytes
42. What is the phenomenon where light bends as it passes from one medium to another? — Refraction
43. Which phenomenon causes the sky to appear blue? — Scattering of sunlight by atmospheric particles
44. What is the process by which plants make their own food called? — Photosynthesis
45. Which part of the human eye controls the amount of light entering it? — Iris
46. Which of the following is a non-metal that is a good conductor of electricity? — Graphite
47. Which type of acid is found in lemons? — Citric acid
48. What is the term for the tendency of an object to resist changes in its state of motion? — Inertia
49. Which vitamin is synthesized in the skin upon exposure to sunlight? — Vitamin D
50. What is the SI unit of electric current? — Ampere
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