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General Science

1. What is the chemical symbol for water?

  1. H2O
  2. CO2
  3. NaCl
  4. HCl

2. What is the primary function of red blood cells in the human body?

  1. Transporting oxygen
  2. Fighting infection
  3. Producing hormones
  4. Digesting food

3. Which of the following is the hardest mineral on Mohs scale?

  1. Quartz
  2. Diamond
  3. Talc
  4. Topaz

4. What is the chemical symbol for gold?

  1. Au
  2. Ag
  3. Pb
  4. Fe

5. The process of conversion of water vapor to liquid water is called?

  1. Condensation
  2. Evaporation
  3. Sublimation
  4. Precipitation

6. Which organ in the human body produces insulin?

  1. Liver
  2. Pancreas
  3. Kidney
  4. Spleen

7. What is the chemical symbol for oxygen?

  1. O2
  2. O3
  3. O
  4. CO2

8. Which planet is known as the “Red Planet”?

  1. Venus
  2. Mars
  3. Jupiter
  4. Saturn

9. What is the unit of electric current?

  1. Joule
  2. Volt
  3. Ampere
  4. Watt

10. What causes the sky to appear blue?

  1. Reflection
  2. Refraction
  3. Scattering
  4. Absorption

11. Which gas is most abundant in Earth’s atmosphere?

  1. Oxygen
  2. Nitrogen
  3. Carbon dioxide
  4. Argon

12. What is the chemical formula for table salt?

  1. NaCl
  2. H2O
  3. CO2
  4. CaCO3

13. What is the hardest part of the human body?

  1. Teeth
  2. Bones
  3. Skin
  4. Hair

14. What is the process by which plants make their food called?

  1. Photosynthesis
  2. Respiration
  3. Fermentation
  4. Digestion

15. Which metal is liquid at room temperature?

  1. Gold
  2. Silver
  3. Mercury
  4. Copper

16. The Earth’s inner core is primarily composed of which element?

  1. Iron
  2. Nickel
  3. Oxygen
  4. Silicon

17. What is the largest organ in the human body?

  1. Liver
  2. Heart
  3. Skin
  4. Brain

18. Which of the following is a greenhouse gas?

  1. Nitrogen
  2. Oxygen
  3. Carbon dioxide
  4. Helium

19. What is the chemical formula for hydrogen peroxide?

  1. H2O2
  2. CO2
  3. NaCl
  4. HCl

20. Which organ in the human body produces bile?

  1. Stomach
  2. Liver
  3. Pancreas
  4. Gallbladder

21. What is the unit of measurement for force?

  1. Newton
  2. Watt
  3. Joule
  4. Ampere

22. Which of the following is not a phase of matter?

  1. Solid
  2. Liquid
  3. Gas
  4. Plasma

23. What is the chemical symbol for iron?

  1. I
  2. Fe
  3. Ir
  4. Au

24. Which planet is known as the “Morning Star”?

  1. Venus
  2. Mars
  3. Mercury
  4. Jupiter

25. What is the chemical formula for ammonia?

  1. NH4
  2. NH3
  3. H2O
  4. CO2

26. Which of the following is a primary color of light?

  1. Yellow
  2. Cyan
  3. Magenta
  4. Black

27. What is the chemical formula for carbon dioxide?

  1. CO2
  2. CO
  3. O2
  4. C2O

28. What is the largest planet in our solar system?

  1. Venus
  2. Earth
  3. Jupiter
  4. Saturn

29. What is the SI unit of temperature?

  1. Celsius
  2. Fahrenheit
  3. Kelvin
  4. Rankine

30. Which organ in the human body produces bile?

  1. Stomach
  2. Liver
  3. Pancreas
  4. Gallbladder

31. What is the chemical symbol for silver?

  1. S
  2. Si
  3. Ag
  4. Au

32. Which gas is used for photosynthesis by plants?

  1. Carbon dioxide
  2. Oxygen
  3. Nitrogen
  4. Hydrogen

33. What is the chemical formula for glucose?

  1. CO2
  2. H2O
  3. C6H12O6
  4. CH4

34. What is the process by which plants release water vapor into the atmosphere called?

  1. Transpiration
  2. Condensation
  3. Evaporation
  4. Precipitation

36. Which of the following is a renewable source of energy?

  1. Coal
  2. Natural gas
  3. Wind
  4. Uranium

37. What is the chemical symbol for calcium?

  1. Ca
  2. Cu
  3. Co
  4. C

38. What is the process by which an organism develops from a fertilized egg to maturity called?

  1. Reproduction
  2. Metabolism
  3. Development
  4. Growth

39. What is the main component of the Earth’s atmosphere?

  1. Nitrogen
  2. Oxygen
  3. Carbon dioxide
  4. Water vapor

40. What is the chemical formula for methane?

  1. CH3OH
  2. CH4
  3. C2H5OH
  4. H2O

41. Which of the following is not a type of simple machine?

  1. Lever
  2. Wheel
  3. Pulley
  4. Inclined plane

42. What is the process by which rocks are broken down into smaller pieces called?

  1. Erosion
  2. Deposition
  3. Weathering
  4. Sedimentation

43. What is the chemical formula for sodium chloride?

  1. NaCl
  2. H2O
  3. CO2
  4. NaOH

44. Which of the following is not a primary color of light?

  1. Red
  2. Blue
  3. Green
  4. Yellow

45. What is the SI unit of pressure?

  1. Pascal
  2. Newton
  3. Watt
  4. Joule

46. What is the chemical symbol for potassium?

  1. K
  2. P
  3. Ko
  4. Pt

47. What is the process by which plants absorb water from the soil called?

  1. Transpiration
  2. Photosynthesis
  3. Respiration
  4. Osmosis

48. Which of the following is not a type of rock?

  1. Igneous
  2. Metamorphic
  3. Sedimentary
  4. Metallic

49. What is the chemical formula for sulfuric acid?

  1. H2SO4
  2. NaCl
  3. CO2
  4. HCl

50. What is the SI unit of energy?

  1. Joule
  2. Watt
  3. Newton
  4. Kilogram

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