1. Who discovered the law of gravity?
(A) Isaac Newton
(B) Albert Einstein
(C) Galileo Galilei
(D) Nikola Tesla
2. What major discovery is Alexander Fleming known for?
(A) Vaccination
(B) Radioactivity
(C) Penicillin
(D) DNA structure
3. Which scientist is credited with discovering the structure of DNA?
(A) James Watson and Francis Crick
(B) Gregor Mendel
(C) Louis Pasteur
(D) Marie Curie
4. What was the impact of the discovery of penicillin?
(A) Helped develop antibiotics for viruses
(B) Created the first vaccine
(C) Led to the invention of the microscope
(D) Revolutionized treatment of bacterial infections
5. Who invented the telephone?
(A) Thomas Edison
(B) Alexander Graham Bell
(C) Nikola Tesla
(D) Guglielmo Marconi
6. What was Albert Einstein's major scientific contribution?
(A) Invention of the radio
(B) Discovery of electricity
(C) Theory of relativity
(D) Discovery of gravity
7. What is the significance of the discovery of X-rays?
(A) Revolutionized medical diagnosis
(B) Led to the discovery of electricity
(C) Helped develop the telephone
(D) Created antibiotics
8. Who is credited with the discovery of the vaccine for smallpox?
(A) Louis Pasteur
(B) Edward Jenner
(C) Robert Koch
(D) Jonas Salk
9. What impact did the discovery of vaccines have on public health?
(A) Eradication of many infectious diseases
(B) Increased disease outbreaks
(C) Slowed down medical research
(D) Reduced life expectancy
10. Who discovered the electron?
(A) Max Planck
(B) Ernest Rutherford
(C) Niels Bohr
(D) J.J. Thomson
11. What was the impact of the discovery of the electron?
(A) Foundation of modern electronics and atomic physics
(B) Development of vaccines
(C) Invention of the telephone
(D) Discovery of DNA
12. Who invented the light bulb?
(A) Nikola Tesla
(B) Thomas Edison
(C) Michael Faraday
(D) James Watt
13. What was the impact of the invention of the light bulb?
(A) Extended working hours and improved quality of life
(B) Decreased industrial production
(C) Replaced electricity
(D) Increased disease transmission
14. Who discovered radioactivity?
(A) Ernest Rutherford
(B) Marie Curie
(C) Henri Becquerel
(D) Albert Einstein
15. Which scientific discovery led to the development of nuclear energy?
(A) Vaccination
(B) Electricity
(C) Radioactivity
(D) Antibiotics
16. What is the significance of the discovery of antibiotics?
(A) Created new viruses
(B) Increased viral infections
(C) Led to the invention of vaccines
(D) Dramatically reduced deaths from bacterial infections
17. Who discovered the circulation of blood?
(A) William Harvey
(B) Andreas Vesalius
(C) Louis Pasteur
(D) Robert Hooke
18. What was the impact of discovering blood circulation?
(A) Advanced understanding of human physiology and medicine
(B) Developed vaccines
(C) Invented the microscope
(D) Created antibiotics
19. Who is known for discovering the vaccine for polio?
(A) Louis Pasteur
(B) Jonas Salk
(C) Robert Koch
(D) Edward Jenner
20. What impact did the polio vaccine have globally?
(A) Had no impact
(B) Increased polio cases
(C) Near eradication of polio disease worldwide
(D) Created new diseases
21. Who discovered the law of electromagnetic induction?
(A) James Clerk Maxwell
(B) Nikola Tesla
(C) Michael Faraday
(D) Thomas Edison
22. What impact did the discovery of electromagnetic induction have?
(A) Led to development of electric generators and transformers
(B) Led to vaccines development
(C) Caused increased diseases
(D) Created antibiotics
23. Who invented the first successful airplane?
(A) Alexander Graham Bell
(B) Leonardo da Vinci
(C) Thomas Edison
(D) Wright brothers
24. What was the impact of the invention of the airplane?
(A) Reduced trade
(B) Decreased travel speed
(C) Increased isolation
(D) Revolutionized transportation and global connectivity
25. Who discovered the principle of vaccination?
(A) Louis Pasteur
(B) Edward Jenner
(C) Robert Koch
(D) Jonas Salk
26. What was the impact of the discovery of the vaccine principle?
(A) Decreased lifespan
(B) Created new diseases
(C) Provided a preventive method for infectious diseases
(D) Increased infection rates
27. Who invented the first practical steam engine?
(A) Thomas Edison
(B) James Watt
(C) Nikola Tesla
(D) George Stephenson
28. What was the impact of the steam engine invention?
(A) Caused famine
(B) Decreased production
(C) Reduced transportation
(D) Powered the Industrial Revolution
29. Who proposed the theory of evolution by natural selection?
(A) Charles Darwin
(B) Gregor Mendel
(C) Isaac Newton
(D) Alfred Wallace
30. What was the impact of Darwin’s theory of evolution?
(A) Transformed biology and understanding of life origins
(B) Created vaccines
(C) Invented the microscope
(D) Developed electricity
31. Who discovered the germ theory of disease?
(A) Edward Jenner
(B) Robert Koch
(C) Louis Pasteur
(D) Alexander Fleming
32. What was the impact of the germ theory of disease?
(A) Created new diseases
(B) Led to antiseptics and better hygiene practices
(C) Decreased life expectancy
(D) Invented electricity
33. Who discovered the cosmic microwave background radiation?
(A) Arno Penzias and Robert Wilson
(B) Edwin Hubble
(C) Albert Einstein
(D) Carl Sagan
34. What was the impact of discovering cosmic microwave background radiation?
(A) Led to invention of the telescope
(B) Created new diseases
(C) Developed vaccines
(D) Provided strong evidence for the Big Bang theory
35. Who discovered the periodic table of elements?
(A) Dmitri Mendeleev
(B) Marie Curie
(C) Antoine Lavoisier
(D) John Dalton
36. What was the impact of the periodic table?
(A) Organized elements and guided chemical research
(B) Created new diseases
(C) Invented vaccines
(D) Developed electricity
37. Who invented the microscope?
(A) Isaac Newton
(B) Robert Hooke
(C) Galileo Galilei
(D) Antonie van Leeuwenhoek
38. What was the impact of the invention of the microscope?
(A) Led to discovery of gravity
(B) Opened up the microscopic world and cell biology
(C) Invented vaccines
(D) Created electricity
39. Who discovered radio waves?
(A) Guglielmo Marconi
(B) Nikola Tesla
(C) Heinrich Hertz
(D) Thomas Edison
40. What was the impact of discovering radio waves?
(A) Developed vaccines
(B) Increased disease outbreaks
(C) Enabled wireless communication technology
(D) Led to discovery of DNA
41. Who discovered the vaccine for rabies?
(A) Alexander Fleming
(B) Edward Jenner
(C) Jonas Salk
(D) Louis Pasteur
42. What impact did the invention of the rabies vaccine have?
(A) Prevented deadly viral infections
(B) Increased rabies cases
(C) Created new diseases
(D) Had no impact
43. Who discovered the neutron?
(A) J.J. Thomson
(B) James Chadwick
(C) Ernest Rutherford
(D) Niels Bohr
44. What was the impact of discovering the neutron?
(A) Developed vaccines
(B) Created new diseases
(C) Advanced nuclear physics and atomic research
(D) Led to discovery of gravity
45. Who discovered insulin?
(A) Alexander Fleming
(B) Louis Pasteur
(C) Robert Koch
(D) Frederick Banting and Charles Best
46. What impact did the discovery of insulin have?
(A) Treated diabetes effectively and saved millions of lives
(B) Caused diabetes
(C) Had no impact
(D) Created new diseases
47. Who discovered the first antibiotic?
(A) Louis Pasteur
(B) Alexander Fleming
(C) Robert Koch
(D) Jonas Salk
48. What impact did antibiotics have on medicine?
(A) Reduced mortality from bacterial infections drastically
(B) Increased infectious diseases
(C) Caused viral infections
(D) Reduced life expectancy
49. Who discovered radioactivity in uranium?
(A) Ernest Rutherford
(B) Marie Curie
(C) Henri Becquerel
(D) James Chadwick
50. What impact did the discovery of radioactivity have on science?
(A) Created new diseases
(B) Led to nuclear energy and cancer treatments
(C) Invented vaccines
(D) Developed antibiotics