Science Quizzes

11. The sun is
(A) Star
(B) The Planet
(C) Asteroid
(D) Meteor

12. The average adult has a blood volume of about ________ liters.
(A) 4
(B) 5
(C) 6
(D) 7

13. The most common element in the universe is
(A) Oxygen
(B) Hydrogen
(C) Carbon Dioxide
(D) Silicon

14. The most common element in the earth's crust is the
(A) Oxygen
(B) Hydrogen
(C) Carbon Dioxide
(D) Silicon

15. Every day the human body breathes __________ liters of air.
(A) from 5,000 to 10,000
(B) from 10,000 to 15,000
(C) from 15,000 to 20,000
(D) from 20,000 to 25,000

16. Deficiency of vitamin D leads to
(A) night blindness
(B) Rickets
(C) scurvy
(D) hair loss

17. The SI unit of "pressure" is
(A) Pascal
(B) joule
(C) Tesla
(D) Henry

18. The most dense substance on Earth is
(A) Platinum
(B) Copper
(C) Steel
(D) Osmium

19. The camera uses __________ to form an image.
(A) a convex lens
(B) a concave lens
(C) a condenser lens
(D) none of these

20. Which of the following is NOT a conductor?
(A) Aluminum
(B) Silicon
(C) Graphite
(D) All are conductors

⇒ Science Quiz (21 — 30)

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