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#		Thing	Description	Topic	Up/Down/Net	Score ▼
101		Sea level	Geographical reference point from which various heights are measured	Physical sciences	+1 / -0 / +1	0.523810
102		Quantum gravity	Description of gravity using discrete values	Physical sciences	+1 / -0 / +1	0.523810
103		General relativity	Theory of gravitation as curved spacetime	Physical sciences	+1 / -0 / +1	0.523810
104		Internal energy	Energy contained within a system	Physical sciences	+1 / -0 / +1	0.523810
105		Tesla (unit)	SI unit of magnetic field strength	Physical sciences	+1 / -0 / +1	0.523810
106		Astrophysics	Subfield of astronomy	Physical sciences	+1 / -0 / +1	0.523810
107		Coulomb's law	Fundamental physical law of electromagnetism	Physical sciences	+1 / -0 / +1	0.523810
108		Geologic time scale	System that relates geologic strata to time	Physical sciences	+1 / -0 / +1	0.523810
109		Evaporation	Vaporization of a liquid from its surface	Physical sciences	+1 / -0 / +1	0.523810
110		Coast	Area where land meets the sea or ocean	Physical sciences	+1 / -0 / +1	0.523810
111		Enceladus	Natural satellite orbiting Saturn	Physical sciences	+1 / -0 / +1	0.523810
112		Blazar	Very compact quasi-stellar radio source	Physical sciences	+1 / -0 / +1	0.523810
113		Solstice	Twice-annual astronomical event when the Sun is farthest from above the Earth's equator	Physical sciences	+1 / -0 / +1	0.523810
114		Colloid	Mixture of an insoluble substance microscopically dispersed throughout another substance	Physical sciences	+1 / -0 / +1	0.523810
115		Frequency	Number of occurrences or cycles per unit time	Physical sciences	+1 / -0 / +1	0.523810
116		Amide	Organic compounds of the form RC(=O)NR′R″	Physical sciences	+1 / -0 / +1	0.523810
117		Electrical network	Assemblage of connected electrical elements	Physical sciences	+1 / -0 / +1	0.523810
118		Supercluster	Large group of smaller galaxy clusters or galaxy groups	Physical sciences	+1 / -0 / +1	0.523810
119		Neptune	Eighth planet from the Sun	Physical sciences	+1 / -0 / +1	0.523810
120		Nature	Material world and its phenomena	Physical sciences	+1 / -0 / +1	0.523810
121		Snow	Precipitation in the form of ice crystal flakes	Physical sciences	+1 / -0 / +1	0.523810
122		Aerosol	Suspension of fine solid particles or liquid droplets in a gas	Physical sciences	+1 / -0 / +1	0.523810
123		Carbon	Chemical element with atomic number 6 (C)	Physical sciences	+1 / -0 / +1	0.523810
124		Canis Major	Constellation in the southern celestial hemisphere	Physical sciences	+1 / -0 / +1	0.523810
125		Minor planet	Astronomical object that is neither a planet nor a comet	Physical sciences	+1 / -0 / +1	0.523810
126		Geyser	Natural explosive eruption of hot water	Physical sciences	+1 / -0 / +1	0.523810
127		Meteorite	Solid debris from outer space that hits a planetary surface	Physical sciences	+1 / -0 / +1	0.523810
128		Tide	Change in sea level due to gravity	Physical sciences	+1 / -1 / 0	0.500000
129		Supermassive black hole	Largest type of black hole	Physical sciences	+1 / -1 / 0	0.500000
130		Energy level	Different states of quantum systems	Physical sciences	+1 / -1 / 0	0.500000
131		Isotope	Atoms of the same element, but different mass	Physical sciences	+1 / -1 / 0	0.500000
132		Nitrous oxide	Colourless non-flammable greenhouse gas	Physical sciences	+1 / -1 / 0	0.500000
133		Boson	Class of subatomic particle	Physical sciences	+1 / -1 / 0	0.500000
134		3C 273	Brightest quasar from Earth located in the constellation Virgo	Physical sciences	+0 / -0 / 0	0.500000
135		Absolute zero	Lowest theoretical temperature	Physical sciences	+0 / -0 / 0	0.500000
136		Absorption spectroscopy	Spectroscopic techniques that measure the absorption of radiation	Physical sciences	+0 / -0 / 0	0.500000
137		Abyssal plain	Flat area on the deep ocean floor	Physical sciences	+0 / -0 / 0	0.500000
138		Acceleration	Rate of change of velocity	Physical sciences	+0 / -0 / 0	0.500000
139		Accuracy and precision	Measures of observational error	Physical sciences	+0 / -0 / 0	0.500000
140		Acetone	Organic compound ((CH3)2CO); simplest ketone	Physical sciences	+0 / -0 / 0	0.500000
141		Acid	Chemical compound giving a proton or accepting an electron pair	Physical sciences	+0 / -0 / 0	0.500000
142		Acid–base reaction	Chemical reaction between an acid and a base	Physical sciences	+0 / -0 / 0	0.500000
143		Acoustics	Branch of physics involving mechanical waves	Physical sciences	+0 / -0 / 0	0.500000
144		Actinide	F-block chemical elements	Physical sciences	+0 / -0 / 0	0.500000
145		Actinium	Chemical element with atomic number 89 (Ac)	Physical sciences	+0 / -0 / 0	0.500000
146		Active galactic nucleus	Compact region at a galaxy's center with abnormally high luminosity	Physical sciences	+0 / -0 / 0	0.500000
147		Aeolian processes	Processes due to wind activity	Physical sciences	+0 / -0 / 0	0.500000
148		Aerodynamics	Branch of dynamics concerned with studying the motion of air	Physical sciences	+0 / -0 / 0	0.500000
149		Air mass	Volume of air defined by its temperature and water vapor content	Physical sciences	+0 / -0 / 0	0.500000
150		Albedo	Ratio of how much light is reflected back from a body	Physical sciences	+0 / -0 / 0	0.500000

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