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| # | Thing | Description | Topic | For | Against | Net | |
|---|---|---|---|---|---|---|---|
| 1001 |  | Technetium | Chemical element with atomic number 43 (Tc) | Physical sciences | 0 | 0 | 0 |
| 1002 |  | Tellurium | Chemical element with atomic number 52 (Te) | Physical sciences | 0 | 0 | 0 |
| 1003 |  | Temperate broadleaf and mixed forests | Biome | Physical sciences | 0 | 0 | 0 |
| 1004 |  | Temperate climate | Main climate class | Physical sciences | 0 | 0 | 0 |
| 1005 |  | Temperature | Physical quantity of hot and cold | Physical sciences | 0 | 0 | 0 |
| 1006 |  | Terbium | Chemical element with atomic number 65 (Tb) | Physical sciences | 0 | 0 | 0 |
| 1007 |  | Terrestrial planet | Planet that is composed primarily of silicate rocks or metals | Physical sciences | 0 | 0 | 0 |
| 1008 | Tesla (unit) | SI unit of magnetic field strength | Physical sciences | 0 | 0 | 0 | |
| 1009 |  | Tevatron | Defunct American particle accelerator at Fermilab in Illinois (1983–2011) | Physical sciences | 0 | 0 | 0 |
| 1010 |  | Thallium | Chemical element with atomic number 81 (Tl) | Physical sciences | 0 | 0 | 0 |
| 1011 |  | Theoretical physics | Branch of physics | Physical sciences | 0 | 0 | 0 |
| 1012 |  | Theory of relativity | Two interrelated physics theories by Albert Einstein | Physical sciences | 0 | 0 | 0 |
| 1013 |  | Thermodynamic cycle | Linked cyclic series of thermodynamic processes | Physical sciences | 0 | 0 | 0 |
| 1014 | | Thermodynamic free energy | State function whose change relates to the system's maximal work output | Physical sciences | 0 | 0 | 0 |
| 1015 | | Thermodynamics | Physics of heat, work, and temperature | Physical sciences | 0 | 0 | 0 |
| 1016 |  | Thermohaline circulation | Part of large-scale ocean circulation | Physical sciences | 0 | 0 | 0 |
| 1017 |  | Thiol | Any organic compound having a sulfanyl group (–SH) | Physical sciences | 0 | 0 | 0 |
| 1018 |  | Thorium | Chemical element with atomic number 90 (Th) | Physical sciences | 0 | 0 | 0 |
| 1019 |  | Thrust fault | Type of reverse fault that has a dip of 45 degrees or less | Physical sciences | 0 | 0 | 0 |
| 1020 |  | Thulium | Chemical element with atomic number 69 (Tm) | Physical sciences | 0 | 0 | 0 |
| 1021 |  | Thunderstorm | Storm characterized by lightning | Physical sciences | 0 | 0 | 0 |
| 1022 |  | Tidal locking | Situation in which an astronomical object's orbital period matches its rotational period | Physical sciences | 0 | 0 | 0 |
| 1023 |  | Tide | Change in sea level due to gravity | Physical sciences | 0 | 0 | 0 |
| 1024 |  | Time | Continuous progression from past to future | Physical sciences | 0 | 0 | 0 |
| 1025 |  | Tin | Chemical element with atomic number 50 (Sn) | Physical sciences | 0 | 0 | 0 |
| 1026 |  | Titan (moon) | Largest moon of Saturn | Physical sciences | 0 | 0 | 0 |
| 1027 |  | Titanium | Chemical element with atomic number 22 (Ti) | Physical sciences | 0 | 0 | 0 |
| 1028 |  | Titanium dioxide | Chemical compound | Physical sciences | 0 | 0 | 0 |
| 1029 |  | Ton | Unit of mass or volume with different values | Physical sciences | 0 | 0 | 0 |
| 1030 |  | Tornado | Violently rotating column of air | Physical sciences | 0 | 0 | 0 |
| 1031 |  | Torque | Turning force around an axis | Physical sciences | 0 | 0 | 0 |
| 1032 |  | Trade winds | Equatorial east-to-west prevailing winds | Physical sciences | 0 | 0 | 0 |
| 1033 |  | Transition metal | Series of chemical elements | Physical sciences | 0 | 0 | 0 |
| 1034 |  | Transparency and translucency | Physical property of allowing light | Physical sciences | 0 | 0 | 0 |
| 1035 |  | Triangulum Galaxy | Spiral galaxy in the constellation Triangulum | Physical sciences | 0 | 0 | 0 |
| 1036 |  | Triassic | First period of the Mesozoic Era | Physical sciences | 0 | 0 | 0 |
| 1037 |  | Triassic–Jurassic extinction | Mass extinction ending the Triassic period | Physical sciences | 0 | 0 | 0 |
| 1038 |  | Triple point | Thermodynamic point where three matter phases exist | Physical sciences | 0 | 0 | 0 |
| 1039 |  | Triton (moon) | Largest moon of Neptune | Physical sciences | 0 | 0 | 0 |
| 1040 |  | Tropical climate | Major climate group in Köppen classification | Physical sciences | 0 | 0 | 0 |
| 1041 |  | Tropical cyclone | Rapidly rotating storm system | Physical sciences | 0 | 0 | 0 |
| 1042 |  | Tropical rainforest | Tropical broadleaf forest with high rainfall | Physical sciences | 0 | 0 | 0 |
| 1043 |  | Tsunami | Series of water waves | Physical sciences | 0 | 0 | 0 |
| 1044 |  | Tuff | Rock consolidated from volcanic ash | Physical sciences | 0 | 0 | 0 |
| 1045 |  | Tundra | Biome where plant growth is hindered by frigid temperatures | Physical sciences | 0 | 0 | 0 |
| 1046 |  | Tungsten | Chemical element with atomic number 74 (W) | Physical sciences | 0 | 0 | 0 |
| 1047 | Turbulence | Motion characterized by chaotic changes in pressure and flow velocity | Physical sciences | 0 | 0 | 0 | |
| 1048 |  | Ultimate fate of the universe | Theories about the end of the universe | Physical sciences | 0 | 0 | 0 |
| 1049 |  | Ultrasound | Sound waves with frequencies above the human hearing range | Physical sciences | 0 | 0 | 0 |
| 1050 |  | Ultraviolet | Form of electromagnetic radiation | Physical sciences | 0 | 0 | 0 |
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