500 general science knowledge questions and answers covering various topics. This will be a comprehensive list, so I’ll use the most efficient format to present this information.
Here are 500 science general knowledge questions and answers
- What is the hardest natural substance on Earth? Diamond
- Which planet is known as the Red Planet? Mars
- What is the chemical symbol for gold? Au
- What is the largest organ in the human body? Skin
- What is the study of fossils called? Paleontology
- Which gas do plants absorb from the atmosphere? Carbon dioxide
- What is the smallest unit of matter? Atom
- Which planet has the most moons? Jupiter
- What is the process by which plants make their own food? Photosynthesis
- What is the speed of light in vacuum? 299,792,458 meters per second
- What is the chemical formula for water? H2O
- Which element has the atomic number 1? Hydrogen
- What is the largest planet in our solar system? Jupiter
- What is the study of weather called? Meteorology
- Which blood type is known as the universal donor? O negative
- What is the closest star to Earth? The Sun
- What is the unit of electric current? Ampere
- Which gas makes up the majority of Earth’s atmosphere? Nitrogen
- What is the process of a liquid turning into a gas called? Evaporation
- Which planet is known as the “Morning Star” or “Evening Star”? Venus
- What is the smallest bone in the human body? Stapes in the ear
- What is the study of earthquakes called? Seismology
- Which element has the chemical symbol Fe? Iron
- What is the largest species of shark? Whale shark
- What is the unit of force named after Isaac Newton? Newton
- Which planet is known for its prominent ring system? Saturn
- What is the process of converting food into energy in the body? Metabolism
- What is the study of heredity and variation in organisms? Genetics
- Which gas is responsible for the ozone layer? Ozone
- What is the smallest planet in our solar system? Mercury
- What is the chemical symbol for silver? Ag
- Which blood cells are responsible for clotting? Platelets
- What is the study of the Earth’s physical structure and substance called? Geology
- Which element is essential for all known forms of life? Carbon
- What is the largest moon of Saturn? Titan
- What is the process by which rocks are broken down into smaller pieces? Weathering
- Which scientist proposed the theory of evolution by natural selection? Charles Darwin
- What is the unit of electrical resistance? Ohm
- Which gas do humans exhale when they breathe out? Carbon dioxide
- What is the study of the universe called? Cosmology
- Which element has the atomic number 79? Gold
- What is the largest species of penguin? Emperor penguin
- What is the process of a solid turning directly into a gas called? Sublimation
- Which planet is known as the “Ice Giant”? Uranus
- What is the smallest unit of life? Cell
- What is the study of the interactions between organisms and their environment? Ecology
- Which element is liquid at room temperature? Mercury
- What is the largest artery in the human body? Aorta
- What is the unit of power named after James Watt? Watt
- Which galaxy is the Milky Way’s nearest neighbor? Andromeda
- What is the chemical symbol for sodium? Na
- Which gas is known as laughing gas? Nitrous oxide
- What is the study of the Earth’s atmosphere called? Meteorology
- Which element is the most abundant in the Earth’s crust? Oxygen
- What is the largest species of big cat? Siberian tiger
- What is the process of water changing from a liquid to a solid? Freezing
- Which planet is known as the “Blue Planet”? Earth
- What is the smallest particle of an element that retains its properties? Atom
- What is the study of the properties and behavior of light called? Optics
- Which gas makes up the majority of the Sun? Hydrogen
- What is the chemical symbol for potassium? K
- Which organ in the human body produces insulin? Pancreas
- What is the study of the properties and behavior of matter and energy called? Physics
- Which element has the atomic number 6? Carbon
- What is the largest species of bear? Polar bear
- What is the process of a gas turning into a liquid called? Condensation
- Which planet is known as the “Windy Planet”? Neptune
- What is the smallest unit of genetic material? Gene
- What is the study of chemical reactions involving electricity called? Electrochemistry
- Which gas is responsible for the greenhouse effect on Earth? Carbon dioxide
- What is the chemical symbol for copper? Cu
- Which part of the human brain is responsible for balance and coordination? Cerebellum
- What is the study of the Earth’s oceans called? Oceanography
- Which element is the most abundant in the universe? Hydrogen
- What is the largest species of whale? Blue whale
- What is the process of a gas turning directly into a solid called? Deposition
- Which dwarf planet was once considered the ninth planet in our solar system? Pluto
- What is the smallest particle of a compound that retains its properties? Molecule
- What is the study of the properties and behavior of sound called? Acoustics
- Which gas is used by plants for photosynthesis? Carbon dioxide
- What is the chemical symbol for lead? Pb
- Which organ in the human body produces bile? Liver
- What is the study of the properties and behavior of matter at very low temperatures called? Cryogenics
- Which element has the atomic number 8? Oxygen
- What is the largest species of land animal? African bush elephant
- What is the process of a substance changing from a gas to a solid without becoming a liquid called? Deposition
- Which planet has the shortest day in our solar system? Jupiter
- What is the smallest unit of an element that can take part in a chemical reaction? Atom
- What is the study of the properties and behavior of magnets called? Magnetism
- Which gas is used in fizzy drinks to create bubbles? Carbon dioxide
- What is the chemical symbol for nitrogen? N
- Which part of the human eye is responsible for controlling the amount of light that enters? Iris
- What is the study of the Earth’s atmosphere and weather patterns called? Meteorology
- Which element is essential for strong bones and teeth? Calcium
- What is the largest species of reptile? Saltwater crocodile
- What is the process of a substance changing directly from a solid to a gas called? Sublimation
- Which planet has the longest day in our solar system? Venus
- What is the smallest particle of matter that retains the properties of an element? Atom
- What is the study of the properties and behavior of heat called? Thermodynamics
- Which gas is used in balloons to make them float? Helium
- What is the chemical symbol for calcium? Ca
- Which organ in the human body is responsible for filtering blood? Kidneys
- What is the study of the properties and behavior of living organisms called? Biology
- Which element has the atomic number 26? Iron
- What is the largest species of fish? Whale shark
- What is the process of a liquid turning into a solid called? Freezing
- Which planet is known as the “Giant Planet”? Jupiter
- What is the smallest unit of life that can reproduce independently? Cell
- What is the study of the properties and behavior of electricity called? Electricity
- Which gas is used by humans for respiration? Oxygen
- What is the chemical symbol for helium? He
- Which part of the human brain is responsible for memory and learning? Hippocampus
- What is the study of the Earth’s physical features and atmosphere called? Geography
- Which element is the most electronegative? Fluorine
- What is the largest species of bird? Ostrich
- What is the process of a substance changing from a higher energy state to a lower energy state called? Exothermic reaction
- Which planet has the most extreme seasons in our solar system? Uranus
- What is the smallest particle of a substance that retains its chemical properties? Molecule
- What is the study of the properties and behavior of radioactive materials called? Nuclear physics
- Which gas is used in fire extinguishers? Carbon dioxide
- What is the chemical symbol for oxygen? O
- Which organ in the human body produces red blood cells? Bone marrow
- What is the study of the classification of living organisms called? Taxonomy
- Which element has the atomic number 47? Silver
- What is the largest species of snake? Reticulated python
- What is the process of a substance changing from a lower energy state to a higher energy state called? Endothermic reaction
- Which planet is the hottest in our solar system? Venus
- What is the smallest unit of matter that can exist independently? Atom
- What is the study of the properties and behavior of fluids called? Fluid dynamics
- Which gas is used in neon signs to produce red light? Neon
- What is the chemical symbol for carbon? C
- Which part of the human eye contains photoreceptor cells? Retina
- What is the study of the Earth’s past climates called? Paleoclimatology
- Which element is the most abundant metal in the Earth’s crust? Aluminum
- What is the largest species of jellyfish? Lion’s mane jellyfish
- What is the process of a substance changing from one state to another called? Phase transition
- Which planet has the strongest magnetic field in our solar system? Jupiter
- What is the smallest particle of an element that retains its chemical properties? Atom
- What is the study of the properties and behavior of waves called? Wave mechanics
- Which gas is used in welding to prevent oxidation? Argon
- What is the chemical symbol for neon? Ne
- Which organ in the human body produces hormones that regulate metabolism? Thyroid gland
- What is the study of the distribution and abundance of living organisms called? Ecology
- Which element has the atomic number 29? Copper
- What is the largest species of crocodile? Saltwater crocodile
- What is the process of a substance changing from a gas to a liquid called? Condensation
- Which planet has the highest surface gravity in our solar system? Jupiter
- What is the smallest unit of a chemical element? Atom
- What is the study of the properties and behavior of crystals called? Crystallography
- Which gas is used in fluorescent lamps? Mercury vapor
- What is the chemical symbol for phosphorus? P
- Which part of the human brain is responsible for regulating body temperature? Hypothalamus
- What is the study of the Earth’s water resources called? Hydrology
- Which element is essential for the production of chlorophyll in plants? Magnesium
- What is the largest species of octopus? Giant Pacific octopus
- What is the process of a substance changing from a solid to a liquid called? Melting
- Which planet has the longest year in our solar system? Neptune
- What is the smallest particle of a compound? Molecule
- What is the study of the properties and behavior of subatomic particles called? Particle physics
- Which gas is used in fire extinguishers to displace oxygen? Carbon dioxide
- What is the chemical symbol for sulfur? S
- Which organ in the human body produces bile to aid in digestion? Liver
- What is the study of the Earth’s atmosphere and its processes called? Atmospheric science
- Which element has the atomic number 13? Aluminum
- What is the largest species of lizard? Komodo dragon
- What is the process of a substance changing from a liquid to a gas called? Vaporization
- Which planet has the most volcanoes in our solar system? Venus
- What is the smallest unit of matter that can take part in a chemical reaction? Atom
- What is the study of the properties and behavior of matter at the molecular level called? Molecular physics
- Which gas is used in balloons to make them rise? Helium
- What is the chemical symbol for chlorine? Cl
- Which part of the human ear is responsible for balance? Semicircular canals
- What is the study of the Earth’s physical structure and substance called? Geology
- Which element is the most abundant in the human body? Oxygen
- What is the largest species of turtle? Leatherback sea turtle
- What is the process of a substance changing from one phase to another without changing its chemical composition called? Phase transition
- Which planet has the most moons in our solar system? Jupiter
- What is the smallest particle of an element that can exist? Atom
- What is the study of the properties and behavior of electromagnetic radiation called? Electromagnetism
- Which gas is used in some types of welding? Acetylene
- What is the chemical symbol for magnesium? Mg
- Which organ in the human body produces insulin to regulate blood sugar? Pancreas
- What is the study of the Earth’s crust and its processes called? Geology
- Which element has the atomic number 30? Zinc
- What is the largest species of crab? Japanese spider crab
- What is the process of a substance changing from a higher energy state to a lower energy state called? Exothermic reaction
- Which planet has the strongest winds in our solar system? Neptune
- What is the smallest unit of a compound that retains its chemical properties? Molecule
- What is the study of the properties and behavior of atoms called? Atomic physics
- Which gas is used in some types of lasers? Carbon dioxide
- What is the chemical symbol for argon? Ar
- Which part of the human brain is responsible for vision? Occipital lobe
- What is the study of the Earth’s magnetic field called? Geomagnetism
- Which element is essential for the production of hemoglobin in blood? Iron
- What is the largest species of squid? Giant squid
- What is the process of a substance changing from a lower energy state to a higher energy state called? Endothermic reaction
- Which planet has the most extreme tilt in our solar system? Uranus
- What is the smallest particle of matter that retains the properties of a compound? Molecule
- What is the study of the properties and behavior of nuclear reactions called? Nuclear physics
- Which gas is used in some types of light bulbs? Xenon
- What is the chemical symbol for potassium? K
- Which organ in the human body produces testosterone? Testes
- What is the study of the Earth’s atmosphere and weather patterns called? Meteorology
- Which element has the atomic number 11? Sodium
- What is the largest species of frog? Goliath frog
- What is the process of a substance changing from a solid to a gas without passing through the liquid state called? Sublimation
- Which planet has the highest density in our solar system? Earth
- What is the smallest unit of an element that can take part in a chemical reaction? Atom
- What is the study of the properties and behavior of heat transfer called? Thermodynamics
- Which gas is used in some types of plasma TVs? Xenon
- What is the chemical symbol for silicon? Si
- Which organ in the human body produces estrogen? Ovaries
- What is the study of the Earth’s landforms and the processes that shape them called? Geomorphology
- Which element has the atomic number 20? Calcium
- What is the largest species of salamander? Chinese giant salamander
- What is the process of a substance changing from a gas to a solid without passing through the liquid state called? Deposition
- Which planet has the longest day in our solar system? Venus
- What is the smallest particle of a substance that retains its chemical identity? Molecule
- What is the study of the properties and behavior of materials at the nanoscale called? Nanotechnology
- Which gas is used in some types of fire extinguishers? Halon
- What is the chemical symbol for aluminum? Al
- Which part of the human brain is responsible for speech production? Broca’s area
- What is the study of the Earth’s interior structure and composition called? Geophysics
- Which element is essential for the production of thyroid hormones? Iodine
- What is the largest species of sea anemone? Giant green anemone
- What is the process of a substance changing from one crystalline structure to another called? Polymorphism
- Which planet has the most eccentric orbit in our solar system? Mercury
- What is the smallest particle of an element that retains its chemical properties? Atom
- What is the study of the properties and behavior of plasmas called? Plasma physics
- Which gas is used in some types of high-intensity discharge lamps? Mercury vapor
- What is the chemical symbol for titanium? Ti
- Which organ in the human body produces growth hormone? Pituitary gland
- What is the study of the Earth’s past life forms and their evolution called? Paleontology
- Which element has the atomic number 16? Sulfur
- What is the largest species of sea turtle? Leatherback sea turtle
- What is the process of a substance changing from a liquid to a solid called? Freezing
- Which planet has the most dramatic seasonal changes in our solar system? Uranus
- What is the smallest unit of a compound that can exist independently? Molecule
- What is the study of the properties and behavior of semiconductors called? Semiconductor physics
- Which gas is used in some types of particle detectors? Xenon
- What is the chemical symbol for zinc? Zn
- Which part of the human brain is responsible for language comprehension? Wernicke’s area
- What is the study of the Earth’s climate and its changes over time called? Climatology
- Which element is essential for the production of DNA? Phosphorus
- What is the largest species of ray? Giant oceanic manta ray
- What is the process of a substance changing from a solid to a liquid called? Melting
- Which planet has the strongest auroras in our solar system? Jupiter
- What is the smallest particle of matter that can exist freely? Atom
- What is the study of the properties and behavior of quantum systems called? Quantum mechanics
- Which gas is used in some types of deep-sea diving? Helium
- What is the chemical symbol for copper? Cu
- Which organ in the human body produces melatonin? Pineal gland
- What is the study of the Earth’s water systems and their distribution called? Hydrology
- Which element has the atomic number 7? Nitrogen
- What is the largest species of coral? Great barrier reef coral
- What is the process of a substance changing from a gas to a liquid called? Condensation
- Which planet has the most complex ring system in our solar system? Saturn
- What is the smallest particle of a compound that retains its chemical properties? Molecule
- What is the study of the properties and behavior of superconductors called? Superconductivity
- Which gas is used in some types of arc welding? Argon
- What is the chemical symbol for silver? Ag
- Which part of the human brain is responsible for emotional responses? Amygdala
- What is the study of the Earth’s oceans and their processes called? Oceanography
- Which element is essential for the production of red blood cells? Iron
- What is the largest species of starfish? Sunflower sea star
- What is the process of a substance changing from one allotropic form to another called? Allotropic transformation
- Which planet has the most extreme temperature variations in our solar system? Mercury
- What is the smallest particle of an element that can take part in a chemical reaction? Atom
- What is the study of the properties and behavior of elementary particles called? Particle physics
- Which gas is used in some types of gas chromatography? Helium
- What is the chemical symbol for gold? Au
- Which organ in the human body produces adrenaline? Adrenal glands
- What is the study of the Earth’s atmosphere and its interaction with other systems called? Atmospheric science
- Which element has the atomic number 15? Phosphorus
- What is the largest species of sea urchin? Red sea urchin
- What is the process of a substance changing from a liquid to a gas called? Vaporization
- Which planet has the most complex atmospheric dynamics in our solar system? Jupiter
- What is the smallest unit of matter that retains the properties of an element? Atom
- What is the study of the properties and behavior of magnetic materials called? Magnetism
- Which gas is used in some types of nuclear reactors? Helium
- What is the chemical symbol for mercury? Hg
- Which part of the human brain is responsible for maintaining balance and posture? Cerebellum
- What is the study of the Earth’s physical features and their relation to human activities called? Physical geography
- Which element is essential for the production of proteins? Nitrogen
- What is the largest species of sea slug? Black sea hare
- What is the process of a substance changing from one isotopic form to another called? Isotopic transformation
- Which planet has the most extreme atmospheric pressure in our solar system? Venus
- What is the smallest particle of a substance that can exist independently? Molecule
- What is the study of the properties and behavior of lasers called? Laser physics
- Which gas is used in some types of fluorescent lamps? Mercury vapor
- What is the chemical symbol for lead? Pb
- Which organ in the human body produces bile? Liver
- What is the study of the Earth’s crust and its mineral resources called? Economic geology
- Which element has the atomic number 12? Magnesium
- What is the largest species of clam? Giant clam
- What is the process of a substance changing from a crystalline state to an amorphous state called? Vitrification
- Which planet has the most extreme axial tilt in our solar system? Uranus
- What is the smallest particle of an element that retains its chemical identity? Atom
- What is the study of the properties and behavior of fluids in motion called? Fluid dynamics
- Which gas is used in some types of gas-discharge lamps? Neon
- What is the chemical symbol for sodium? Na
- Which part of the human brain is responsible for regulating sleep patterns? Hypothalamus
- What is the study of the Earth’s magnetic field and its variations called? Geomagnetism
- Which element is essential for the production of chlorophyll? Magnesium
- What is the largest species of barnacle? Giant barnacle
- What is the process of a substance changing from an amorphous state to a crystalline state called? Devitrification
- Which planet has the most extreme surface features in our solar system? Mars
- What is the smallest unit of a compound that can take part in a chemical reaction? Molecule
- What is the study of the properties and behavior of sound waves called? Acoustics
- Which gas is used in some types of gas lasers? Helium-neon
- What is the chemical symbol for iron? Fe
- Which organ in the human body produces insulin? Pancreas
- What is the study of the Earth’s interior heat and its effects called? Geothermics
- Which element has the atomic number 19? Potassium
- What is the largest species of sea pen? Giant sea pen
- What is the process of a substance changing from one nuclear isomer to another called? Nuclear isomerization
- Which planet has the most extreme seasonal temperature variations in our solar system? Mars
- What is the smallest particle of matter that can exist as a stable entity? Atom
- What is the study of the properties and behavior of materials at high pressures called? High-pressure physics
- Which gas is used in some types of gas-filled thermometers? Mercury
- What is the chemical symbol for tungsten? W
- Which part of the human brain is responsible for processing auditory information? Temporal lobe
- What is the study of the Earth’s glaciers and ice sheets called? Glaciology
- Which element is essential for the production of vitamin B12? Cobalt
- What is the largest species of sea cucumber? Giant sea cucumber
- What is the process of a substance changing from one enantiomeric form to another called? Racemization
- Which planet has the most extreme atmospheric composition in our solar system? Venus
- What is the smallest particle of a substance that retains its physical properties? Molecule
- What is the study of the properties and behavior of materials at low temperatures called? Cryogenics
- Which gas is used in some types of gas-filled light bulbs? Argon
- What is the chemical symbol for nickel? Ni
- Which organ in the human body produces testosterone? Testes
- What is the study of the Earth’s seismic waves and their propagation called? Seismology
- Which element has the atomic number 24? Chromium
- What is the largest species of brittle star? Giant brittle star
- What is the process of a substance changing from one polymorphic form to another called? Polymorphic transformation
- Which planet has the most extreme day-night temperature difference in our solar system? Mercury
- What is the smallest unit of an element that can exist independently? Atom
- What is the study of the properties and behavior of materials at the atomic and molecular level called? Materials science
- Which gas is used in some types of gas-filled radiation detectors? Xenon
- What is the chemical symbol for platinum? Pt
- Which part of the human brain is responsible for controlling voluntary movements? Motor cortex
- What is the study of the Earth’s past climates and their changes called? Paleoclimatology
- Which element is essential for the production of hemoglobin? Iron
- What is the largest species of sponge? Giant barrel sponge
- What is the process of a substance changing from one oxidation state to another called? Redox reaction
- Which planet has the most extreme magnetic field in our solar system? Jupiter
- What is the smallest particle of a compound that retains its chemical identity? Molecule
- What is the study of the properties and behavior of materials under stress and strain called? Mechanics of materials
- Which gas is used in some types of gas-filled particle accelerators? Hydrogen
- What is the chemical symbol for uranium? U
- Which organ in the human body produces estrogen? Ovaries
- What is the study of the Earth’s rocks and their formation called? Petrology
- Which element has the atomic number 28? Nickel
- What is the largest species of hydrozoan? Portuguese man-of-war
- What is the process of a substance changing from one nuclear spin state to another called? Nuclear magnetic resonance
- Which planet has the most extreme surface gravity in our solar system? Jupiter
- What is the smallest particle of an element that can take part in a nuclear reaction? Nucleus
- What is the study of the properties and behavior of materials at high temperatures called? High-temperature physics
- Which gas is used in some types of gas-filled insulated windows? Argon
- What is the chemical symbol for barium? Ba
- Which part of the human brain is responsible for processing visual information? Occipital lobe
- What is the study of the Earth’s underground water systems called? Hydrogeology
- Which element is essential for the production of thyroid hormones? Iodine
- What is the largest species of ctenophore? Venus’s girdle
- What is the process of a substance changing from one quantum state to another called? Quantum transition
- Which planet has the most extreme atmospheric winds in our solar system? Neptune
- What is the smallest particle of matter that can be isolated? Atom
- What is the study of the properties and behavior of materials at the nanoscale called? Nanoscience
- Which gas is used in some types of gas-filled electrical switches? Sulfur hexafluoride
- What is the chemical symbol for radium? Ra
- Which organ in the human body produces growth hormone? Pituitary gland
- What is the study of the Earth’s volcanic activity and related phenomena called? Volcanology
- Which element has the atomic number 34? Selenium
- What is the largest species of salp? Giant salp
- What is the process of a substance changing from one electronic state to another called? Electronic transition
- Which planet has the most extreme orbital eccentricity in our solar system? Mercury
- What is the smallest particle of a substance that can undergo a chemical reaction? Molecule
- What is the study of the properties and behavior of materials under extreme conditions called? Extreme materials science
- Which gas is used in some types of gas-filled radiation therapy equipment? Cobalt-60
- What is the chemical symbol for cesium? Cs
- Which part of the human brain is responsible for regulating body temperature? Hypothalamus
- What is the study of the Earth’s ice ages and their causes called? Glacial geology
- Which element is essential for the production of red blood cells? Iron
- What is the largest species of tunicate? Giant pyrosome
- What is the process of a substance changing from one vibrational state to another called? Vibrational transition
- Which planet has the most extreme atmospheric chemistry in our solar system? Venus
- What is the smallest particle of an element that retains its nuclear properties? Nucleus
- What is the study of the properties and behavior of materials in space called? Space materials science
- Which gas is used in some types of gas-filled ion engines? Xenon
- What is the chemical symbol for thorium? Th
- Which organ in the human body produces melatonin? Pineal gland
- What is the study of the Earth’s plate tectonics and related phenomena called? Plate tectonics
- Which element has the atomic number 42? Molybdenum
- What is the largest species of placozoan? Trichoplax adhaerens
- What is the process of a substanceplacozoan? Trichoplax adhaerens
- What is the process of a substance changing from one rotational state to another called? Rotational transition
- Which planet has the most extreme surface features in our solar system? Mars
- What is the smallest particle of a compound that can undergo a nuclear reaction? Nucleus
- What is the study of the properties and behavior of materials under extreme magnetic fields called? High magnetic field physics
- Which gas is used in some types of gas-filled neutron detectors? Helium-3
- What is the chemical symbol for promethium? Pm
- Which part of the human brain is responsible for long-term memory storage? Hippocampus
- What is the study of the Earth’s mantle and its properties called? Mantle geophysics
- Which element has the atomic number 50? Tin
- What is the largest species of rotifer? Bdelloid rotifer
- What is the process of a substance changing from one spin state to another called? Spin transition
- Which planet has the most extreme atmospheric optical phenomena in our solar system? Saturn
- What is the smallest particle of an element that can undergo radioactive decay? Nucleus
- What is the study of the properties and behavior of materials at the interface between solids and liquids called? Interfacial science
- Which gas is used in some types of gas-filled particle detectors? Xenon
- What is the chemical symbol for neodymium? Nd
- Which organ in the human body produces aldosterone? Adrenal glands
- What is the study of the Earth’s magnetic field reversals called? Paleomagnetism
- Which element has the atomic number 74? Tungsten
- What is the largest species of tardigrade? Macrobiotus
- What is the process of a substance changing from one magnetic domain state to another called? Domain wall motion
- Which planet has the most extreme auroral displays in our solar system? Jupiter
- What is the smallest particle of a substance that can undergo a phase transition? Molecule
- What is the study of the properties and behavior of materials at the quantum level called? Quantum materials science
- Which gas is used in some types of gas-filled radiation dosimeters? Argon
- What is the chemical symbol for gadolinium? Gd
- Which part of the human brain is responsible for processing emotions? Limbic system
- What is the study of the Earth’s core and its properties called? Core geophysics
- Which element has the atomic number 92? Uranium
- What is the largest species of loricifera? Pliciloricus enigmaticus
- What is the process of a substance changing from one superconducting state to another called? Superconducting phase transition
- Which planet has the most extreme seasonal methane storms in our solar system? Uranus
- What is the smallest particle of an element that can undergo nuclear fission? Heavy nucleus
- What is the study of the properties and behavior of materials at the mesoscale called? Mesoscale materials science
- Which gas is used in some types of gas-filled particle accelerators? Hydrogen
- What is the chemical symbol for dysprosium? Dy
- Which organ in the human body produces erythropoietin? Kidneys
- What is the study of the Earth’s past magnetic field orientations called? Archaeomagnetism
- Which element has the atomic number 78? Platinum
- What is the largest species of kinorhynch? Echinoderes rex
- What is the process of a substance changing from one ferroelectric domain state to another called? Ferroelectric domain switching
- Which planet has the most extreme cryovolcanic activity in our solar system? Enceladus, a moon of Saturn
- What is the smallest particle of a substance that can undergo a chemical isomerization? Molecule
- What is the study of the properties and behavior of materials at the femtoscale called? Femtoscience
- Which gas is used in some types of gas-filled neutron generators? Deuterium
- What is the chemical symbol for holmium? Ho
- Which part of the human brain is responsible for circadian rhythms? Suprachiasmatic nucleus
- What is the study of the Earth’s past ocean circulations called? Paleoceanography
- Which element has the atomic number 46? Palladium
- What is the largest species of gnathostomulid? Haplognathia rosea
- What is the process of a substance changing from one topological state to another called? Topological phase transition
- Which planet has the most extreme subsurface oceans in our solar system? Europa, a moon of Jupiter
- What is the smallest particle of an element that can undergo nuclear fusion? Light nucleus
- What is the study of the properties and behavior of materials at the attoscale called? Attoscience
- Which gas is used in some types of gas-filled radiation detectors? Xenon
- What is the chemical symbol for erbium? Er
- Which organ in the human body produces calcitonin? Thyroid gland
- What is the study of the Earth’s past atmospheric compositions called? Paleoatmospheric science
- Which element has the atomic number 44? Ruthenium
- What is the largest species of gastrotrich? Megadasys minor
- What is the process of a substance changing from one quantum spin liquid state to another called? Quantum spin liquid transition
- Which planet has the most extreme geysers in our solar system? Triton, a moon of Neptune
- What is the smallest particle of a substance that can undergo a nuclear magnetic resonance? Nucleus with non-zero spin
- What is the study of the properties and behavior of materials at the zeptoscale called? Zeptoscience
- Which gas is used in some types of gas-filled thermoelectric generators? Xenon
- What is the chemical symbol for thulium? Tm
- Which part of the human brain is responsible for decision-making? Prefrontal cortex
- What is the study of the Earth’s past sea levels called? Paleosealevel studies
- Which element has the atomic number 75? Rhenium
- What is the largest species of cycliophoran? Symbion pandora
- What is the process of a substance changing from one skyrmion state to another called? Skyrmion phase transition
- Which planet has the most extreme tidal heating in our solar system? Io, a moon of Jupiter
- What is the smallest particle of an element that can undergo beta decay? Neutron or proton in a nucleus
- What is the study of the properties and behavior of materials at the yoctoscale called? Yoctoscience
- Which gas is used in some types of gas-filled ion thrusters? Xenon
- What is the chemical symbol for ytterbium? Yb
- Which organ in the human body produces parathyroid hormone? Parathyroid glands
- What is the study of the Earth’s past continental configurations called? Paleogeography
- Which element has the atomic number 77? Iridium
- What is the largest species of micrognathozoan? Limnognathia maerski
- What is the process of a substance changing from one topological insulator state to another called? Topological phase transition
- Which planet has the most extreme magnetosphere in our solar system? Jupiter
- What is the smallest particle of a substance that can undergo alpha decay? Heavy nucleus
- What is the study of the properties and behavior of materials at the Planck scale called? Planck scale physics
- Which gas is used in some types of gas-filled nuclear fusion reactors? Deuterium and tritium
- What is the chemical symbol for lutetium? Lu
- Which part of the human brain is responsible for processing fear? Amygdala
- What is the study of the Earth’s past biodiversity called? Paleobiology
- Which element has the atomic number 45? Rhodium
- What is the largest species of xenoturbellid? Xenoturbella bocki
- What is the process of a substance changing from one Majorana fermion state to another called? Majorana zero mode transition
- Which planet has the most extreme ring system in our solar system? Saturn
- What is the smallest particle of an element that can undergo gamma emission? Excited nucleus
- What is the study of the properties and behavior of materials at the quantum gravity scale called? Quantum gravity materials science
- Which gas is used in some types of gas-filled quantum computers? Helium-3
- What is the chemical symbol for lawrencium? Lr
- Which organ in the human body produces renin? Kidneys
- What is the study of the Earth’s past ecosystems called? Paleoecology
- Which element has the atomic number 106? Seaborgium
- What is the largest species of placozoan? Trichoplax adhaerens
- What is the process of a substance changing from one quantum critical state to another called? Quantum critical point transition
- Which planet has the most extreme atmospheric superrotation in our solar system? Venus
- What is the smallest particle of a substance that can undergo positron emission? Proton-rich nucleus
- What is the study of the properties and behavior of materials at the string theory scale called? String theory materials science
- Which gas is used in some types of gas-filled quantum sensors? Rubidium
