Nature
196 questionsConnect with nature through science! Test your knowledge of biology, ecosystems, animal behavior, plant life, natural phenomena, environmental science, and the wonders of the natural world.
Easy Questions
5071% of the Earth's surface is made up of
The correct answer is D. Water
What is the hottest planet in the Solar System?
The correct answer is D. Venus
What is the standard atomic weight of a Plutonium nucleus?
The correct answer is B. 244
How many bones are in the human body?
The correct answer is C. 206
What is the largest animal currently on Earth?
The correct answer is A. Blue Whale
Which gas forms about 78% of the Earth’s atmosphere?
The correct answer is C. Nitrogen
What does the letter 'S' stand for in 'NASA'?
The correct answer is C. Space
How many chromosomes are in your body cells?
The correct answer is C. 23
How many planets are in our Solar System?
The correct answer is A. Eight
The medical term for the belly button is which of the following?
The correct answer is D. Umbilicus
What is the powerhouse of the cell?
The correct answer is A. Mitochondria
What is the elemental symbol for mercury?
The correct answer is A. Hg
What is the chemical makeup of water?
The correct answer is D. H20
What is the primary addictive substance found in tobacco?
The correct answer is D. Nicotine
Which of the following blood vessels carries deoxygenated blood?
The correct answer is C. Pulmonary Artery
What was the name of the first artificial Earth satellite, launched by the Soviet Union in 1957?
The correct answer is B. Sputnik 1
What does DNA stand for?
The correct answer is C. Deoxyribonucleic Acid
Dry ice is the solid form of what substance?
The correct answer is B. Carbon dioxide
Who discovered the Law of Gravity?
The correct answer is D. Sir Isaac Newton
Which element has the chemical symbol 'Fe'?
The correct answer is B. Iron
Which of these Elements is a metalloid?
The correct answer is A. Antimony
What is the official name of the star located closest to the North Celestial Pole?
The correct answer is D. Polaris
What is the speed of light in a vacuum?
The correct answer is A. 299,792,458 m/s
Which is the longest bone in the human body?
The correct answer is A. Femur
What is the standard SI unit for temperature?
The correct answer is C. Kelvin
What lies at the center of our galaxy?
The correct answer is A. A black hole
This element, when overcome with extreme heat and pressure, creates diamonds.
The correct answer is A. Carbon
Which type of rock is created by intense heat AND pressure?
The correct answer is C. Metamorphic
What animal takes part in Schrödinger's most famous thought experiment?
The correct answer is C. Cat
Which of these bones is hardest to break?
The correct answer is B. Femur
Which element has the highest melting point?
The correct answer is A. Carbon
What is the first element on the periodic table?
The correct answer is B. Hydrogen
Who is the chemical element Curium named after?
The correct answer is B. Marie & Pierre Curie
What is the "powerhouse" of the Eukaryotic animal cell?
The correct answer is C. Mitochondria
What name is given to all baby marsupials?
The correct answer is C. Joey
What is the atomic mass of Carbon?
The correct answer is B. 12
The human heart has how many chambers?
The correct answer is C. 4
Human cells typically have how many copies of each gene?
The correct answer is B. 2
The biggest distinction between a eukaryotic cell and a prokaryotic cell is:
The correct answer is C. The presence or absence of a nucleus
Which noble gas has the lowest atomic number?
The correct answer is B. Helium
Alzheimer's disease primarily affects which part of the human body?
The correct answer is A. Brain
How many planets make up our Solar System?
The correct answer is C. 8
Which is the most abundant element in the universe?
The correct answer is B. Hydrogen
Which Apollo mission was the first one to land on the Moon?
The correct answer is B. Apollo 11
Which of the following bones is not in the leg?
The correct answer is C. Radius
Rhinoplasty is a surgical procedure on what part of the human body?
The correct answer is D. Nose
The asteroid belt is located between which two planets?
The correct answer is C. Mars and Jupiter
What is the unit of electrical resistance?
The correct answer is C. Ohm
What does LASER stand for?
The correct answer is B. Light amplification by stimulated emission of radiation
The element involved in making human blood red is which of the following?
The correct answer is D. Iron
Medium Questions
80What is the scientific term for 'taste'?
The correct answer is B. Gustatory Perception
Who made the discovery of X-rays?
The correct answer is D. Wilhelm Conrad Röntgen
Where did the Great Storm of 1987 make landfall at, first?
The correct answer is A. Cornwall
To the nearest minute, how long does it take for light to travel from the Sun to the Earth?
The correct answer is D. 8 Minutes
Which portion of the Marijuana plant produces the psychoactive substance known as THC?
The correct answer is A. Female Flower
Down Syndrome is usually caused by an extra copy of which chromosome?
The correct answer is B. 21
What stage of development do the majority of eukaryotic cells remain in for most of their life?
The correct answer is A. Interphase
What is the colour of unoxidized blood?
The correct answer is D. Red
Which chemical element has the lowest boiling point?
The correct answer is A. Helium
What is an alternative name for multiple personality disorder?
The correct answer is B. Dissociative identity disorder
Which chemical element was originally known as Alabamine?
The correct answer is B. Astatine
An organism described as "heliotropic" has a tendancy to move towards which of these things?
The correct answer is A. Light
Which part of the body does glaucoma affect?
The correct answer is B. Eyes
What mineral has the lowest number on the Mohs scale?
The correct answer is D. Talc
Which of the following is NOT a passive electrical component?
The correct answer is D. Transistor
The medial meniscus forms which part of what joint in the human body?
The correct answer is C. Knee
Deuterium is an isotope of which element?
The correct answer is B. Hydrogen
What is the half-life of Uranium-235?
The correct answer is C. 703,800,000 years
Who developed the first successful polio vaccine in the 1950s?
The correct answer is C. Jonas Salk
Au on the Periodic Table refers to which element?
The correct answer is A. Gold
The humerus, paired radius, and ulna come together to form what joint?
The correct answer is B. Elbow
What is Hypernatremia?
The correct answer is D. Increase in blood sodium
What is the unit of electrical capacitance?
The correct answer is A. Farad
When was the first mammal successfully cloned?
The correct answer is B. 1996
What are human nails made of?
The correct answer is D. Keratin
What do you study if you are studying entomology?
The correct answer is C. Insects
On which mission did the Space Shuttle Columbia break up upon re-entry?
The correct answer is A. STS-107
Which planet did the "Viking 1" spacecraft send surface images of, starting in 1976?
The correct answer is B. Mars
How many officially recognized dwarf planets in the solar system are named after Polynesian deities?
The correct answer is C. 2
What is the largest living organism currently known to man?
The correct answer is B. Honey Fungus
In human biology, a circadium rhythm relates to a period of roughly how many hours?
The correct answer is B. 24
What was the first living creature in space?
The correct answer is B. Fruit Flies
What are the smallest blood vessels in the human body?
The correct answer is B. Capillaries
What polymer is used to make CDs, safety goggles and riot shields?
The correct answer is C. Polycarbonate
How many degrees Fahrenheit is 100 degrees Celsius?
The correct answer is B. 212
The human right lung has how many lobes?
The correct answer is C. 3
What term is best associated with Sigmund Freud?
The correct answer is C. Psychoanalysis
What part of the brain takes its name from the Greek for seahorse?
The correct answer is C. Hippocampus
Gannymede is the largest moon of which planet?
The correct answer is A. Jupiter
The Sun consists of mostly which two elements?
The correct answer is C. Hydrogen & Helium
What is the molecular formula of the active component of chili peppers(Capsaicin)?
The correct answer is B. C18H27NO3
At what temperature does water boil?
The correct answer is D. 212°F
What is the study of the cells and tissues of plants and animals?
The correct answer is C. Histology
How old is the universe?
The correct answer is A. 13.8 Billion Years
Myopia is the scientific term for which condition?
The correct answer is D. Shortsightedness
About how old is Earth?
The correct answer is C. 4.5 Billion Years
What is the atomic number of the element Strontium?
The correct answer is B. 38
The medical condition osteoporosis affects which part of the body?
The correct answer is A. Bones
Which color cannot be produced in Roses, even through genetic alteration?
The correct answer is B. Blue
The moons, Miranda, Ariel, Umbriel, Titania and Oberon orbit which planet?
The correct answer is C. Uranus
In aeronautics, flaps and slats are used to control what on an aircraft?
The correct answer is B. Lift
Which of these elements on the Periodic Table is a Noble Gas?
The correct answer is C. Neon
Along with Oxygen, which element is primarily responsible for the sky appearing blue?
The correct answer is D. Nitrogen
Which of these stars is the largest?
The correct answer is C. UY Scuti
Which psychological term refers to the stress of holding contrasting beliefs?
The correct answer is B. Cognitive Dissonance
Approximately how long is a year on Uranus?
The correct answer is D. 84 Earth years
All the following metal elements are liquids at or near room temperature EXCEPT:
The correct answer is A. Beryllium
In Chemistry, how many isomers does Butanol (C4H9OH) have?
The correct answer is B. 4
What is the name of the cognitive bias wherein a person with low ability in a particular skill mistake themselves as being superior?
The correct answer is A. Dunning-Kruger effect
Which desert is the only desert in the world where the "Saguaro" cactus grows indigenously?
The correct answer is C. The Sonoran Desert
What is the chemical formula for ammonia?
The correct answer is C. NH3
Which of the following spacecraft never touched the moon?
The correct answer is C. Mariner 4
What is radiation measured in?
The correct answer is B. Gray
Which of the following men does not have a chemical element named after him?
The correct answer is D. Sir Isaac Newton
What is the Linnean name of the domestic apple tree?
The correct answer is C. Malus pumila
Where did the dog breed "Chihuahua" originate?
The correct answer is B. Mexico
Which of these choices is not one of the phases of mitosis?
The correct answer is B. Diplophase
After which Danish city is the 72th element on the periodic table named?
The correct answer is A. Copenhagen
A positron is an antiparticle of a what?
The correct answer is A. Electron
The "Tibia" is found in which part of the body?
The correct answer is D. Leg
On the periodic table of elements, what is the symbol for Tin?
The correct answer is C. Sn
Which of these is a type of stretch/deep tendon reflex?
The correct answer is A. Ankle jerk reflex
Which element has the atomic number of 7?
The correct answer is C. Nitrogen
Which of these is NOT a part of the structure of a typical neuron?
The correct answer is A. Islets of Langerhans
The Axiom of Preventive Medicine states that people with ___ risk for a disease should be screened and we should treat ___ of those people.
The correct answer is C. low, all
In Psychology, which need appears highest in the "Maslow's hierarchy of needs" pyramid?
The correct answer is A. Esteem
Which one of these scientists conducted the Gold Foil Experiment which concluded that atoms are mostly made of empty space?
The correct answer is B. Ernest Rutherford
Deionized water is water with which of the following removed?
The correct answer is B. Iron
What does the yellow diamond on the NFPA 704 fire diamond represent?
The correct answer is D. Reactivity
When the Falcon Heavy was launched on it's test flight, what was the only part of the operation that failed?
The correct answer is A. Center Core Landing
Hard Questions
66Which of the following liquids is least viscous? Assume temperature is 25°C.
The correct answer is A. Acetone
What is isobutylphenylpropanoic acid more commonly known as?
The correct answer is B. Ibuprofen
What causes the sound of a heartbeat?
The correct answer is B. Closure of the heart valves
Which of the following plastic is commonly used for window frames, gutters and drain pipes?
The correct answer is D. Polyvinylchloride (PVC)
Which horizon in a soil profile consists of bedrock?
The correct answer is D. R
The word "science" stems from the word "scire" meaning what?
The correct answer is B. To know
Which of these chemical compounds is NOT found in gastric acid?
The correct answer is D. Sulfuric acid
What is the molecular formula of Glucose?
The correct answer is B. C6H12O6
An organic compound is considered an alcohol if it has what functional group?
The correct answer is D. Hydroxyl
Which of the following is considered classical conditioning?
The correct answer is B. Pavlov's dog experiments
How many objects are equivalent to one mole?
The correct answer is D. 6.022 x 10^23
Which of the following elements is typically used in the doping of the semiconductor silicon?
The correct answer is A. Boron
Which is not a type of neuron?
The correct answer is C. Perceptual Neuron
What is the molecular formula of Ozone?
The correct answer is C. O3
Which of the following are cells of the adaptive immune system?
The correct answer is A. Cytotoxic T cells
Autosomal-dominant Compelling Helio-Ophthalmic Outburst syndrome is the need to do what when seeing the Sun?
The correct answer is C. Sneeze
In quantum physics, which of these theorised sub-atomic particles has yet to be observed?
The correct answer is B. Graviton
All of the following human genetic haplogroup names are shared between Y-chromosome and mitochondrial DNA haplogroups EXCEPT:
The correct answer is D. Haplogroup U
The Western Lowland Gorilla is scientifically know as?
The correct answer is D. Gorilla Gorilla Gorilla
If you planted the seeds of Quercus robur what would grow?
The correct answer is C. Trees
Which of these is a stop codon in DNA?
The correct answer is D. TAA
What physics principle relates the net electric flux out of a closed surface to the charge enclosed by that surface?
The correct answer is D. Gauss's Law
What is the name for the auditory illusion of a note that seems to be rising infinitely?
The correct answer is D. Shepard Tone
What is the same in Celsius and Fahrenheit?
The correct answer is B. -40
How many protons are in an oxygen atom?
The correct answer is A. Eight
Muscle fiber is constructed of bundles small long organelles called what?
The correct answer is D. Myofibrils
Which of the following is a major muscle of the back?
The correct answer is B. Trapezius
What is the scientific name of the knee cap?
The correct answer is C. Patella
What was the first organic compound to be synthesized from inorganic compounds?
The correct answer is D. Urea
In physics, conservation of energy and conservation of momentum are both consequences of which of the following?
The correct answer is C. Noether's Theorem
Folic acid is the synthetic form of which vitamin?
The correct answer is B. Vitamin B
Which of the following is NOT a real element?
The correct answer is D. Vitrainium
Which is the chemical name of H2O?
The correct answer is C. Dihydrogen Monoxide
What common name is given to the medial condition, tibial stress syndrome (MTSS)?
The correct answer is C. Shin Splints
What element on the periodic table has 92 electrons?
The correct answer is D. Uranium
Where is the Gluteus Maximus muscle located?
The correct answer is B. Butt
The 'Islets of Langerhans' is found in which human organ?
The correct answer is D. Pancreas
What is "Stenoma"?
The correct answer is B. A genus of moths
What nucleotide pairs with guanine?
The correct answer is B. Cytosine
Which scientific unit is named after an Italian nobleman?
The correct answer is D. Volt
What is the unit of electrical inductance?
The correct answer is B. Henry
In the Scoville scale, what is the hottest chemical?
The correct answer is C. Resiniferatoxin
How many legs is it biologically impossible for a centipede to have?
The correct answer is A. 100
On the Beaufort Scale of wind force, what wind name is given to number 8?
The correct answer is B. Gale
Which of the following is NOT a word used to describe an earthquake?
The correct answer is A. Drop-slide
What is the scientific name of the red fox?
The correct answer is C. Vulpes Vulpes
Burning which of these metals will produce a bright white flame?
The correct answer is D. Magnesium
Which constellation contains the center of the Milky Way?
The correct answer is C. Sagittarius
What does the term "isolation" refer to in microbiology?
The correct answer is D. The separation of a strain from a natural, mixed population of living microbes
What is the scientific name for the extinct hominin known as "Lucy"?
The correct answer is A. Australopithecus Afarensis
Botanically speaking, which of these fruits is NOT a berry?
The correct answer is D. Strawberry
Which major extinction event was caused by an asteroid collision and eliminated the majority of non-avian dinosaurs?
The correct answer is A. Cretaceous-Paleogene
"The Big Bang Theory" was first theorized by a priest of what religious ideology?
The correct answer is A. Catholic
Coulrophobia is the irrational fear of what?
The correct answer is B. Clowns
A comet's gaseous envelope (which creates the tail) is called what?
The correct answer is C. The coma
Which of the following is the term for "surgical complications resulting from surgical sponges left inside the patient's body?
The correct answer is B. Gossypiboma
How much radiation does a banana emit?
The correct answer is A. 0.1 Microsievert
Which of these animals belongs in class Chondrichthyes?
The correct answer is B. Great white shark
Which one of these is scientific term for "Brain Freeze"?
The correct answer is D. Sphenopalatine Ganglioneuralgia
What genetic disease is caused by having an extra Y chromosome (XYY)?
The correct answer is B. Jacob's Syndrome
Which moon is the only satellite in our solar system to possess a dense atmosphere?
The correct answer is D. Titan
How long is a light-year?
The correct answer is D. 9.461 Trillion Kilometres
How many types of quarks are there in the standard model of physics?
The correct answer is D. 6
What is considered the rarist form of color blindness?
The correct answer is A. Blue
The core of the Sun can reach which temperature?
The correct answer is A. 27° Million F (15° Million C)
What is the most potent toxin known?
The correct answer is B. Botulinum toxin
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