Jeopardy! Round, Double Jeopardy! Round, or Tiebreaker Round clues (20 results returned)
| #9152, aired 2024-07-23 | TIME FOR SCIENCE $400: Telescopes can be reflectors, which use mirrors to focus light, or these, which use lenses refractors |
| #9152, aired 2024-07-23 | TIME FOR SCIENCE $800: Carbon atoms can form 4 of these with other atoms; in carbene molecules, they form just 2 bonds |
| #9152, aired 2024-07-23 | TIME FOR SCIENCE $1200: The dynamo theory says that movement of liquid iron in Earth's core creates this protective blanket around the planet magnetic field |
| #9152, aired 2024-07-23 | TIME FOR SCIENCE $1600: Most elements exist in multiple forms called these; beyond No. 83 on the periodic table, there are no stable ones isotope |
| #9152, aired 2024-07-23 | TIME FOR SCIENCE $2000: Early electronics used bulky vacuum tubes; beginning in the late 1940s, these compact successors made things portable transistor |
| #8444, aired 2021-07-15 | TIME FOR SCIENCE $400: This large colorful mammal's heart rate was first recorded in 2019: as low as 2 bpm while diving, up to 37 bpm when coming up for air the blue whale |
| #8444, aired 2021-07-15 | TIME FOR SCIENCE $800: The Supreme Court ruled you cannot patent natural genes, like the BRCA1 & BRCA2 ones named for this type of cancer breast cancer |
| #8444, aired 2021-07-15 | TIME FOR SCIENCE $1200: Born hearing-impaired in 1653, Joseph Sauveur studied sound vibrations & coined this word for the science he pioneered acoustics |
| #8444, aired 2021-07-15 | TIME FOR SCIENCE $1600: Percival Lowell thought he saw these on the surface of Venus--some think it was a reflection of the blood vessels in his eye canals |
| #8444, aired 2021-07-15 | TIME FOR SCIENCE $2000: In addition to its acidity, one reason honey doesn't spoil is that an enzyme in bees helps produce this compound, H2O2, a germicide hydrogen peroxide |
| #8351, aired 2021-03-08 | SCIENCE TIME $400: The mafic type of this 5-letter underground molten rock can reach more than 2,000 degrees Fahrenheit magma |
| #8351, aired 2021-03-08 | SCIENCE TIME $800: It has atomic number 3 as the least dense of all metals & number 34 as a SiriusXM channel for '90s tunes lithium |
| #8351, aired 2021-03-08 | SCIENCE TIME $1200: In 1995 physicist Melissa Franklin was part of the team that discovered the elusive "top" one of these a quark |
| #8351, aired 2021-03-08 | SCIENCE TIME $1600: Evergreens have waxy or leathery leaves to hold moisture, but this other main tree type holds moisture by losing leaves in the cold deciduous |
| #8351, aired 2021-03-08 | SCIENCE TIME $2000: The "water on the road" mirage is due to hotter air above the blacktop, causing this bending of light rays refraction |
| #7246, aired 2016-02-29 | OLD-TIME SCIENCE $400: Neptunism was the idea this once covered the earth & all rock precipitated from it water |
| #7246, aired 2016-02-29 | OLD-TIME SCIENCE $800: The 1862 telluric screw organized atomic weights on a cylinder, a 3D version of this table the periodic table |
| #7246, aired 2016-02-29 | OLD-TIME SCIENCE $1200: Early OB/GYNs thought eating too many strawberries during pregnancy gave the baby the strawberry type of this a birthmark |
| #7246, aired 2016-02-29 | OLD-TIME SCIENCE $1600: 17th c. scientists thought adding a soiled shirt to wheat can create mice--the theory of the spontaneous type of this generation |
| #7246, aired 2016-02-29 | OLD-TIME SCIENCE $2000: Mutation is part of modern genetics; put a syllable before it to get this change of base metals to gold in alchemy transmutation |
Final Jeopardy! Round clues (0 results returned)
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