Master Physics, Chemistry, Biology, Astronomy, Inventions & Famous American Scientists – Aligned with U.S. Science Standards
This 50 Science Questions from an American Perspective covers physics, chemistry, biology, earth science, astronomy, famous American scientists, inventions, and major scientific breakthroughs. Each question includes four answer choices with the correct answer provided for self-checking.Â
Comment your score below  after tallying your correct answers. Perfect for test prep, STEM review, or classroom competitions. Share this quiz with classmates  to celebrate America’s contributions to science and innovation.
Top 50 Science Questions from an American Perspective
#1. Which scientist formulated the three laws of motion?
#2. Which American physicist won the Nobel Prize for the discovery of the electron?
#3. What is the name of the largest moon of Jupiter?
#4. Which American inventor created the first practical light bulb?
#5. What is the name of the NASA mission that first flew humans around the Moon without landing?
#6. What is the chemical symbol for potassium?
#7. What is the name of the largest volcano in the solar system, located on Mars?
#8. What is the name of the largest tree species by volume in the world, found in California?
#9. What is the name of the first American woman to travel into space?
#10. What is the freezing point of water in Fahrenheit?
#11. Which American physicist is known as the “father of the atomic bomb”?
#12. Which planet in our solar system has the shortest day?
#13. Which U.S. state is home to the Arecibo Observatory (famous radio telescope)?
#14. Which American astrophysicist is known for popularizing science through the TV series “Cosmos”?
#15. What is the name of the first American space station?
#16. What is the name of the NASA mission that first landed humans on the Moon?
#17. What is the hardest known natural material on Earth?
#18. What is the chemical formula for baking soda?
#19. Which American inventor is credited with creating the first practical telephone?
#20. Which American astronaut was the first to walk in space?
#21. Which American inventor created the first practical sewing machine?
#22. Which American chemist invented the soft contact lens?
#23. Which element has the chemical symbol ‘Na’?
#24. What is the pH of pure water at 25°C?
#25. Which American biologist first coined the term “cell” after observing cork under a microscope?
#26. Which element has the atomic number 1?
#27. Which American inventor created the first practical automatic dishwasher?
#28. Which American engineer is known as the “father of the Internet”?
#29. Which American scientist developed the polio vaccine?
#30. What is the name of the largest desert in North America?
#31. Which American scientist invented the lightning rod?
#32. Which element is a liquid at room temperature?
#33. What is the name of the American nuclear submarine that first reached the North Pole in 1958?
#34. Which U.S. space agency was established in 1958?
#35. What is the name of the largest ocean on Earth?
#36. Which American scientist won the Nobel Prize for discovering the structure of DNA?
#37. Which American scientist discovered the cosmic microwave background radiation?
#38. What is the name of the largest coral reef system in the world?
#39. What is the name of the NASA rover that landed on Mars in 2021?
#40. What is the name of the first artificial satellite launched by the United States?
#41. What is the name of the first reusable spacecraft developed by NASA?
#42. Which gas is most abundant in Earth’s atmosphere?
#43. Which American inventor created the first commercially successful steamboat?
#44. Which U.S. national laboratory is famous for developing the atomic bomb?
#45. What is the name of the tallest mountain in North America?
#46. What is the name of the process by which plants make their own food?
#47. What is the chemical symbol for silver?
#48. Which American scientist is known for the theory of evolution by natural selection?
#49. What is the name of the hormone that regulates blood sugar levels?
#50. Which U.S. state is home to the Kennedy Space Center?
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