| Oxygen combines with lots of other elements; with this one it makes ZnO, used as an ointment |
zinc |
200 |
October 4, 2013 |
| Oxygen combines with lots of other elements; with this one it makes ZnO, used as an ointment |
zinc |
200 |
October 4, 2013 |
| Similar to reflex, humans' average for this time is roughly 1/4 second & we're going to test yours... right...now ! |
reaction |
400 |
October 4, 2013 |
| Similar to reflex, humans' average for this time is roughly 1/4 second & we're going to test yours... right...now ! |
reaction |
400 |
October 4, 2013 |
| Lack of camouflage & sensitivity to UV radiation doom any wild alligators with this condition from a mutation |
albino |
600 |
October 4, 2013 |
| Lack of camouflage & sensitivity to UV radiation doom any wild alligators with this condition from a mutation |
albino |
600 |
October 4, 2013 |
| A Mars rover found this, hydrated calcium sulfate, indicating not Martian drywallers but Martian water |
gypsum |
800 |
October 4, 2013 |
| A Mars rover found this, hydrated calcium sulfate, indicating not Martian drywallers but Martian water |
gypsum |
800 |
October 4, 2013 |
| Stomp rockets are powered by what's usually called this type of "air" that's been squished under greater than normal pressure |
compressed air |
1000 |
October 4, 2013 |
| Stomp rockets are powered by what's usually called this type of "air" that's been squished under greater than normal pressure |
compressed air |
1000 |
October 4, 2013 |
| This transparent structure behind the iris focuses light entering the eye |
the lens |
200 |
January 31, 2012 |
| This transparent structure behind the iris focuses light entering the eye |
the lens |
200 |
January 31, 2012 |
| (Sarah of the Clue Crew shows us diagrams from the Hall of Human Origins at the Smithsonian.) Comparing MRI scans of a chimp's brain & a human's shows that the human's is not merely larger; it also contains vastly more white matter connecting these cells vital to the transmission & processing of information |
nerves |
400 |
January 31, 2012 |
| (Sarah of the Clue Crew shows us diagrams from the Hall of Human Origins at the Smithsonian.) Comparing MRI scans of a chimp's brain & a human's shows that the human's is not merely larger; it also contains vastly more white matter connecting these cells vital to the transmission & processing of information |
nerves |
400 |
January 31, 2012 |
| By definition, this adjective describes certain organisms that can or must live in the absence of oxygen |
anaerobic |
600 |
January 31, 2012 |
| By definition, this adjective describes certain organisms that can or must live in the absence of oxygen |
anaerobic |
600 |
January 31, 2012 |
| (Kelly of the Clue Crew shows us molecular models in the lab.) We're using models of ethanol to show the 2 basic types of molecular models; 1 clarifies the bonds between these particles, while the other shows better what the molecule looks like in actual space |
atoms |
800 |
January 31, 2012 |
| (Kelly of the Clue Crew shows us molecular models in the lab.) We're using models of ethanol to show the 2 basic types of molecular models; 1 clarifies the bonds between these particles, while the other shows better what the molecule looks like in actual space |
atoms |
800 |
January 31, 2012 |
| This name of the infectious disease caused by the Epstein-Barr virus comes from words meaning "one" & "kernel" |
mononucleosis |
1000 |
January 31, 2012 |
| This name of the infectious disease caused by the Epstein-Barr virus comes from words meaning "one" & "kernel" |
mononucleosis |
1000 |
January 31, 2012 |
| He was in Shanghai in 1921 when he found out he had won a Nobel Prize for Physics |
Einstein |
200 |
May 29, 2009 |
| Isaac Newton published his first mathematical formulation for this fundamental force in 1687 |
gravity |
400 |
May 29, 2009 |
| In 1996 (seems late) researchers announced a new one of these body parts, the spheno-mandibularis |
a muscle |
600 |
May 29, 2009 |
| When boiling water, energy absorbed that escapes as vapor is this type of heat, from Latin latere, "to hide" |
latent energy |
1000 |
May 29, 2009 |
| During an epidemic of this disease in 1796, Edward Jenner discovered the power of vaccines & used it to save lives |
smallpox |
|
May 29, 2009 |
| Each of these organs contains about 1 million nephrons, which filter blood |
the kidneys |
200 |
November 12, 2008 |
| (Jon of the Clue Crew sucks on a straw in a sealed-up bottle that has a marshmallow inside.) The marshmallow in the bottle will expand when I suck on the straw because this property inside the bottle will decrease |
(air) pressure |
400 |
November 12, 2008 |
| These were first seen in human cells in 1882; the exact number, 46, was determined in 1956 |
chromosomes |
600 |
November 12, 2008 |
| (Jon of the Clue Crew pushes a straw into a cupcake, then extracts the result.) Using a cupcake & straw, we're approximating 1 of these 2-word scientific readings used in undersea & underground prospecting |
core sampling |
800 |
November 12, 2008 |
| In 1758 this Swedish biologist introduced binomial nomenclature |
Linnaeus |
1000 |
November 12, 2008 |
| It's what the "L" stands for in "laser" |
light |
200 |
July 8, 2008 |
| The Celsius temperature scale is also called this, meaning "divided into one hundred parts" |
centigrade |
400 |
July 8, 2008 |
| (Cheryl of the Clue Crew performs a science experiment.) By mixing baking soda, a chemical base, with the acid in the lime juice, this gas is produced, resulting in a bubbly liquid |
carbon dioxide |
600 |
July 8, 2008 |
| This one of the simple machines is made by using a wheel & a rope |
a pulley |
800 |
July 8, 2008 |
| Shock researcher Walter Cannon coined this word for an organism's ability to maintain internal equilibrium |
homeostasis |
1000 |
July 8, 2008 |
| (Kelly of the Clue Crew demonstrates with a coffee can & an inclined plane.) A ball of clay inside the can is enough to reposition the can's natural center of this, so the can rolls uphill |
gravity |
200 |
March 28, 2008 |
| Every second, fusion reactions in the Sun convert about 600 million tons of this element into helium |
hydrogen |
400 |
March 28, 2008 |
| Edward Doisy won a 1943 Nobel Prize for synthesizing this hemorrhage-inhibiting vitamin; isn't that "special"? |
vitamin K |
600 |
March 28, 2008 |
| Of the 3 basic rock types, the type that was once one form but has changed to another due to heat & pressure |
metamorphic |
800 |
March 28, 2008 |
| (Jon of the Clue Crew holds a white rock at White Sands National Monument, New Mexico.) Because it's water-soluble, this form of calcium sulfate is rarely found in sand, but here in New Mexico's Tularosa Basin, there are no rivers to carry it away, so it forms the famed white sand |
gypsum |
1000 |
March 28, 2008 |
| ( Kelly of the Clue Crew delivers the clue from a science lab. ) The heat from the lamp causes the snake to dance, as hot air is less this five-letter term than cold air and therefore rises and spins the snake |
dense |
200 |
July 12, 2007 |
| In the nervous system, calcium ions crossing the gap between these cause a release of acetylcholine |
neurons |
400 |
July 12, 2007 |
| ( Kelly delivers the clue from the lab. ) Normally, an ice cube floats; this one, however, sinks right to the bottom because it's made of heavy water, or D2O; the D standing for this isotope |
deuterium |
600 |
July 12, 2007 |
| As opposed to what arthropods have, vertebrates have this internal framework |
endoskeleton |
800 |
July 12, 2007 |
| ( Jimmy of the Clue Crew delivers the clue. ) Though the top book appears to be suspended in air, more than half the weight of the stack rests on the table - the principle is used to build this type of bridge |
cantilever bridge |
1000 |
July 12, 2007 |
| This type of rain forms when nitrogen oxides & sulfur dioxide react within growing droplets |
acid rain |
200 |
March 12, 2007 |
| (Jon of the Clue Crew points to two diagrams of the Earth's tilt on the monitor.) Because of the tilt of the Earth's axis both in summer & winter, solar panels in the United States facing this direction receive the most sun |
south |
400 |
March 12, 2007 |
| This branch of study is for the birds... actually, it's of the birds |
ornithology |
600 |
March 12, 2007 |
| In 1633 the Church condemned him to house arrest for astronomical heresy |
Galileo |
800 |
March 12, 2007 |
| (Kelly of the Clue Crew reading points to a fly's eye on the monitor.) An insect's compound eye can detect 300 flashes of light per second compared to a human's 50, using thousands of tiny lenses known as these, as in a diamond |
a facet |
1000 |
March 12, 2007 |
| The opposite of a base, it turns blue litmus red |
an acid |
200 |
November 16, 2006 |
| Jaundice can be a symptom of this liver disease, type A, B or C |
hepatitis |
400 |
November 16, 2006 |
| The 10th to 12th of these body parts that form a "cage" articulate with single vertebrae |
ribs |
600 |
November 16, 2006 |
| Echocardiography can tell you whether this doublespeak heart issue is caused by an abnormal valve |
heart murmur |
800 |
November 16, 2006 |
| Also known as epinephrine, this hormone is secreted in response to stress, like fear or injury |
adrenaline |
|
November 16, 2006 |
| This medal metal is usually an alloy of tin & copper |
bronze |
200 |
March 13, 2006 |
| (Jon of the Clue Crew reports from Copenhagen, Denmark.) In 1883, Carlsberg developed Saccharomyces carlsbergensis, a special strain of this to ferment the sugars in beer |
yeast |
400 |
March 13, 2006 |
| The name of this disorder in which the bones become porous comes from the Greek for "bone" & "passage" |
osteoporosis |
800 |
March 13, 2006 |
| In astronomy, this unit of measure is abbreviated pc |
parsec |
1000 |
March 13, 2006 |
| In testing out gases by smelling them (not a good idea) Humphry Davy found in 1800 that this one made him feel giddy |
nitrous oxide (or laughing gas) |
|
March 13, 2006 |
| Cosmic rays were first detected by V. F. Hess during a flight by one of these |
a hot air balloon |
200 |
January 24, 2005 |
| The crepe ring is the transparent C ring in this planet's ring system |
Saturn |
400 |
January 24, 2005 |
| Albert Ghiorso at Lawrence Berkeley National Lab holds the record for discovering the most of these |
elements |
600 |
January 24, 2005 |
| In MS-DOS, the .bak file extension meant the file was this type |
back-up file |
800 |
January 24, 2005 |
| An isohel on a weather map is a line showing connecting places with an equal amount of this |
sunshine |
|
January 24, 2005 |
| These electromagnetic rays used to take pictures of your insides were originally known as Roentgen rays |
X-rays |
200 |
April 28, 2003 |
| This German-born American physicist won the 1921 Nobel Prize for Physics |
Albert Einstein |
400 |
April 28, 2003 |
| Also a term for someone from Warsaw, it's one of the 2 strongest points in a magnetic field |
Pole |
800 |
April 28, 2003 |
| The symbol of this radioactive element is Pu & it sounds like it's named after Mickey Mouse's dog |
plutonium |
1000 |
April 28, 2003 |
| When combined with oxygen, this lightest chemical element makes water |
hydrogen |
|
April 28, 2003 |
| The leatherback variety of this reptile is one of the few animals that primarily eat jellyfish |
turtle/tortoise |
200 |
April 24, 2003 |
| This "prefrontal" medical procedure involves the destruction of sections of the brain's cortex |
lobotomy |
400 |
April 24, 2003 |
| This process of making rubber harder & more elastic by heating it with sulfur bears the name of a Roman god |
vulcanization |
600 |
April 24, 2003 |
| His 1543 book "Concerning the Revolutions of the Celestial Spheres" started an astronomical revolution |
Nicholas Copernicus |
800 |
April 24, 2003 |
| The process by which neutral atoms become electrically charged is called this |
ionization |
1000 |
April 24, 2003 |
| The vast majority of this second-lightest gas comes from natural gas fields in the U.S. |
helium |
200 |
January 8, 2003 |
| Sialia mexicana is the scientific name of the western bluebird: Sialia is the genus & mexicana tells you this |
the species |
400 |
January 8, 2003 |
| In a first-class type of this, the fulcrum is between the applied force and the load |
a lever |
600 |
January 8, 2003 |
| The tail of this body is formed when ice turns into gas as it gets closer to the sun |
a comet |
800 |
January 8, 2003 |
| This 5-letter word is the opposite of attract |
repel |
1000 |
January 8, 2003 |
| His 1905 paper "On the Electrodynamics of Moving Bodies" contained his special Theory of Relativity |
Albert Einstein |
200 |
November 8, 2002 |
| In 1935 the daughter of this famed pair won a Nobel Prize for the discovery of artificial radioactivity |
Pierre & Marie Curie |
400 |
November 8, 2002 |
| (Hi, I'm Nobel laureate Rudy Marcus) It's the chemical formula for dry ice |
CO2 |
600 |
November 8, 2002 |
| The term geotropism refers to the effect that this has on the direction plants grow or bend |
gravity/the Earth |
800 |
November 8, 2002 |
| In the Arctic, some of these organisms consisting of an alga & a fungus may be 4,000 years old |
lichens |
1000 |
November 8, 2002 |
| In biology it's a finger; in math, a figure like 1 |
a digit |
100 |
March 10, 2000 |
| A free-falling body accelerates at a rate of about 1 g, g coming from this word |
gravity |
200 |
March 10, 2000 |
| Pre-Y1K scientists figured this organ gave out light; they were, of course, wrong |
eye |
300 |
March 10, 2000 |
| These in the skies of Albuquerque on October 3, 1999 were a fine example of Charles' Law in action |
hot air balloons |
400 |
March 10, 2000 |
| The 5-kingdom system is made up of animals, bacteria, plants, protists & these |
fungi |
500 |
March 10, 2000 |
| The SO in SONAR stands for this word |
Sound |
100 |
October 27, 1998 |
| This space station turned 10 in February 1996 |
Mir |
200 |
October 27, 1998 |
| In 1882 this inventor opened the Pearl Street Power Station in New York |
Thomas Edison |
300 |
October 27, 1998 |
| In a car's steering system, it's the geared wheel that moves the rack |
Pinion |
400 |
October 27, 1998 |
| To produce this metal using the Bayer Process, you begin with caustic soda & bauxite |
Aluminum |
500 |
October 27, 1998 |
| The Graafian follicles of these glands contain the female reproductive cells |
Ovaries |
100 |
October 16, 1997 |
| The sun is 333,000 times as massive as the Earth & 1,047 times as massive as this planet |
Jupiter |
200 |
October 16, 1997 |
| Two 9-volt batteries in a series circuit produce this many volts of electromotive force |
18 |
400 |
October 16, 1997 |
| The screw & the wedge are adaptations of this type of simple machine |
Inclined plane |
500 |
October 16, 1997 |
| This green plant pigment is also found in algae & in some bacteria |
Chlorophyll |
100 |
September 16, 1997 |
| In 1875 this plant breeder moved to California using profits earned on his potato |
Luther Burbank |
200 |
September 16, 1997 |
| It's defined as an atom or group of atoms that has an electrical charge |
Ion |
300 |
September 16, 1997 |
| A 1991 photo of Gaspra taken by the Galileo probe was the first close-up of one of these minor planets |
Asteroid |
400 |
September 16, 1997 |
| In the 1940s this Nobel Prize winner & vitamin C advocate studied the structure of antibodies |
Linus Pauling |
|
September 16, 1997 |
| This fossilized resin from prehistoric pines can preserve an insect forever |
amber |
100 |
July 18, 1997 |
| Most icebergs in the north Atlantic come from about 20 glaciers on this island's west coast |
Greenland |
200 |
July 18, 1997 |
| Around 1840 chemist John William Draper took the first photograph of this heavenly body |
the moon |
300 |
July 18, 1997 |
| Birds & bees perform this transfer of gametes from anthers to stigmas |
pollination |
400 |
July 18, 1997 |
| Einstein said measurements of this depend on whether the observer is moving; it's not absolute |
time |
500 |
July 18, 1997 |
| An EEG records the electrical activity of this organ |
Brain |
100 |
June 19, 1997 |
| Human beings normally have 46 of these in most of their cells |
Chromosomes |
200 |
June 19, 1997 |
| This second-lightest metal, symbol K, is so soft it can be cut with a knife |
Potassium |
300 |
June 19, 1997 |
| He's been called the "Father of Modern Rocketry" |
Robert Goddard |
400 |
June 19, 1997 |
| According to his law, resistance in a DC circuit is the ratio of volts to amps |
Georg Ohm |
500 |
June 19, 1997 |
| The largest cell is the 3-inch diameter yolk of this bird's egg |
Ostrich |
100 |
May 29, 1997 |
| In Latin this metal is known as aurum |
Gold |
200 |
May 29, 1997 |
| On a weather chart this line connects places that have the same barometric pressure |
Isobar |
300 |
May 29, 1997 |
| On June 29, 1994 the temperature reached 125 degrees in Laughlin, the highest ever recorded in this state |
Nevada |
400 |
May 29, 1997 |
| This organ removes excess glucose from the blood & stores it as glycogen |
Liver |
500 |
May 29, 1997 |
| The boundary between the mantle & this layer is called the Mohorovicic Discontinuity |
Crust |
100 |
April 22, 1997 |
| These 2 ducts lead from the ovaries to the uterus |
Fallopian tubes |
200 |
April 22, 1997 |
| In the 1920s, Julius Nieuwland polymerized acetylene, added chlorine atoms & created this synthetic rubber |
Neoprene |
300 |
April 22, 1997 |
| On July 10, 1996 scientists released close-up photos of Ganymede taken by this space probe |
Galileo |
400 |
April 22, 1997 |
| In 1993 Eugene & Carolyn Shoemaker & David Levy discovered a highly fragmented one of these |
Comet |
500 |
April 22, 1997 |
| This gas, symbol Xe, is used in stroboscopes & high-speed camera flashes |
Xenon |
100 |
March 26, 1997 |
| Nearly twice as sweet as sucrose, this fruit sugar is the main sweetener in honey |
Fructose |
200 |
March 26, 1997 |
| An archipelago is a group of islands & this is a ring of coral islands like Bikini in the Pacific |
Atoll |
300 |
March 26, 1997 |
| Developed by Edward Jenner, the first true vaccine was designed to protect against this disease |
Smallpox |
400 |
March 26, 1997 |
| They're the 2 lines of latitude lying 23 1/2 degrees north & south of the Equator |
Tropic of Cancer & Tropic of Capricorn |
500 |
March 26, 1997 |
| This ninth planet's unusual orbit sometimes brings it closer to the sun than the eighth planet |
Pluto |
100 |
March 25, 1997 |
| It's the ratio of the amount of water vapor in the air to the amount the air can hold at that temperature |
Relative humidity |
200 |
March 25, 1997 |
| A parasitoid differs from a parasite in that this eventually happens to its host |
It dies |
300 |
March 25, 1997 |
| The acceleration of falling objects varies from place to place because of variations in this force |
Gravity |
400 |
March 25, 1997 |
| It's the property of a body that opposes an electric current moving through it |
Resistance |
500 |
March 25, 1997 |
| These respiratory organs of aquatic animals occur in oysters & some insect larvae as well as in fish |
Gills |
100 |
March 19, 1997 |
| Used to control glaucoma, a trabeculectomy is a procedure that reduces pressure in this organ |
Eye |
200 |
March 19, 1997 |
| The number of these dark patches visible on the sun's surface varies from a few to several hundred |
Sunspots |
300 |
March 19, 1997 |
| A phrase used to remember this planet's main moons is "Met Dr. Thip"; Titan is the second T |
Saturn |
400 |
March 19, 1997 |
| This drug marketed as Motrin was patented in Great Britain in 1964 |
Ibuprofen |
500 |
March 19, 1997 |
| Magnetism occurs most strongly in 3 elements: nickel, cobalt & this |
Iron |
100 |
February 6, 1997 |
| In 1665 Robert Hooke described & named this structural unit; bacteria have only one |
Cell |
200 |
February 6, 1997 |
| In 1698 Thomas Savery designed the first practical engine to run on this power |
Steam |
300 |
February 6, 1997 |
| This blood protein now comes in alpha, beta & gamma types |
Globulins |
400 |
February 6, 1997 |
| Simple machine Archimedes would use to "move the Earth" if you gave him a firm spot on which to stand |
Lever |
500 |
February 6, 1997 |
| Hirsutism is having more than the normal amount of this |
hair |
100 |
October 3, 1996 |
| This 4th letter of the Greek alphabet is used to describ a high-speed aircraft wing type |
delta |
200 |
October 3, 1996 |
| The focal length is the distance from the center of one of these to the focal point |
the lens |
300 |
October 3, 1996 |
| When astronomers got a close-up look at this object in 1985-86, its nucleus looked like a big potato |
Halley\'s comet |
400 |
October 3, 1996 |
| This term refers to the warm periods within ice ages; we're in one of those periods now |
interglacial |
500 |
October 3, 1996 |
| It's the more common name for sodium chloride |
Salt |
100 |
April 10, 1996 |
| Foxglove is an example of this type of plant that completes its life cycle in 2 years |
Biennial |
200 |
April 10, 1996 |
| After the sun & moon, this planet is the brightest object in the sky |
Venus |
300 |
April 10, 1996 |
| The pH in pH scale stands for the "potential of " this element |
Hydrogen |
400 |
April 10, 1996 |
| In geometry it's a quadrilateral with 2 parallel sides; in anatomy, it's the smallest wrist bone |
Trapezoid |
500 |
April 10, 1996 |
| Drumlins are elongated, elliptical hills formed at the edges of these moving ice masses |
Glaciers |
100 |
January 24, 1996 |
| Elements are arranged in order of their atomic numbers on this table |
Periodic Table of Elements |
200 |
January 24, 1996 |
| This yellow element is found in gunpowder & matches & is used in vulcanizing rubber |
Sulphur |
300 |
January 24, 1996 |
| 2 bacteria, Lactobacillus Bulgaricus & Streptococcus Thermophilus, turn milk into this |
Yogurt |
400 |
January 24, 1996 |
| Named after its 19th century inventor, this pendulum demonstrates the Earth's rotation |
Foucault\'s Pendulum |
500 |
January 24, 1996 |
| Among alkaloids found in plants, this stimulant is found in coffee or tea |
caffeine |
100 |
January 18, 1996 |
| You may not need a high IQ to know IQ stands for this |
intelligence quotient |
200 |
January 18, 1996 |
| Name for the process a caterpillar goes through to become a moth |
metamorphosis |
300 |
January 18, 1996 |
| When cocci live in pairs, they're called diplococci; in clusters, staphylococci; in chains, this |
streptococci |
400 |
January 18, 1996 |
| Next in length on the scale of geological time: age, epoch, period, era... |
eon |
|
January 18, 1996 |
| Mycobacterium tuberculosis is one of the organisms this process kills in milk |
Pasteurization |
100 |
November 15, 1995 |
| Like humans, the Red-vented Bulbul bird needs a dietary source of this vitamin, also called ascorbic acid |
Vitamin C |
200 |
November 15, 1995 |
| Boiling bones & hides converts the protein collagen to this foodstuff |
Gelatin |
300 |
November 15, 1995 |
| Horseshoe crabs & coelacanth fish are considered living ones of these |
Fossils |
400 |
November 15, 1995 |
| Quarks have six known ones of these, which is far short of Baskin-Robbins |
flavors |
500 |
November 15, 1995 |
| Ferrovanadium is an alloy of vanadium & this metal |
iron |
100 |
September 27, 1995 |
| The horny casing of the toes of ungulates is called this |
hooves |
200 |
September 27, 1995 |
| In 1990 this space telescope provided the first picture of Charon as completely separate from Pluto |
the Hubble telescope |
300 |
September 27, 1995 |
| He outlines his 3 laws of motion in "Philosophiae Naturalis Principia Mathematica" |
Sir Isaac Newton |
400 |
September 27, 1995 |
| Fusion, the change of a solid to a liquid state, is more commonly called this |
melting |
500 |
September 27, 1995 |
| Formulated NaCl it's the chemical name for common table salt |
sodium chloride |
100 |
May 2, 1994 |
| Of the 3 basic states of matter, only this one, when unconfined, tends to expand indefinitely |
gas |
200 |
May 2, 1994 |
| Term for the time it takes a radioactive substance to decay to 50% of its original quantity |
half-life |
300 |
May 2, 1994 |
| In biological classification this comes between family & species |
genus |
400 |
May 2, 1994 |
| On the Fahrenheit scale, the freezing point of water is 32° & the boiling point is this |
212° Fahrenheit |
500 |
May 2, 1994 |
| In breathing it's the gas you expel to the atmosphere |
Carbon Dioxide |
100 |
December 3, 1993 |
| Erosion from these created fjords & drumlins |
glaciers |
200 |
December 3, 1993 |
| Scientist John Dalton suffered from the red-green type of this |
Colorblindness |
300 |
December 3, 1993 |
| The surfaces of this type of element can be anodized |
Metal |
400 |
December 3, 1993 |
| He discovered that if nitroglycerin was absorbed by an inert substance, it wouldn't explode from shock |
Alfred Nobel |
500 |
December 3, 1993 |
| It's the element whose atomic weight is closest to its atomic number |
hydrogen |
100 |
June 28, 1993 |
| Inventors of these include Georges Leclanche, Gaston Plante & Alessandro Volta |
batteries |
200 |
June 28, 1993 |
| Life here was the subject of the 1965 book "World Without Sun" |
the sea |
300 |
June 28, 1993 |
| After 1,400 orbits it fell back to Earth January 4, 1958 & burned up |
Sputnik |
400 |
June 28, 1993 |
| In 1977 the U.S. banned these that used freon as the propellant |
spray cans |
500 |
June 28, 1993 |
| Psychologists refer to this sense as olfaction |
smell |
100 |
May 22, 1992 |
| The length of this on Jupiter is less than 10 hours |
the day |
200 |
May 22, 1992 |
| Palynology seeks knowledge about past plant distribution by studying grains of this |
pollen |
300 |
May 22, 1992 |
| Consisting of 3 atoms, water is an example of a triatomic one of these units |
a molecule |
400 |
May 22, 1992 |
| American Arthur Compton's work proved the existence of these "particles" of light |
photons |
500 |
May 22, 1992 |
| When light is passed thru a prism, it produces this spread of colors |
Spectrum |
100 |
January 25, 1991 |
| It's the branch of chemistry that deals with carbon compounds |
Organic Chemistry |
200 |
January 25, 1991 |
| All lines of longitude are measured east or west of this line |
Prime Meridian |
300 |
January 25, 1991 |
| The Big Dipper is part of this constellation |
Ursa Major |
400 |
January 25, 1991 |
| The most important source of uranium & radium is this mineral ore |
Pitchblende |
500 |
January 25, 1991 |
| Invented by Edwin Land, it was the first instant camera |
Polaroid Camera |
100 |
January 17, 1991 |
| When Henry Cavendish discovered this lightest-known element, he called it inflammable air |
Hydrogen |
200 |
January 17, 1991 |
| Galileo is said to have done gravity experiments by dropping weights from this tower |
Leaning Tower of Pisa |
300 |
January 17, 1991 |
| In ancient times, lodestone was used as a form of this instrument |
Compass |
400 |
January 17, 1991 |
| A positive ion is formed when an atom loses one or more of these |
Electron |
500 |
January 17, 1991 |
| In computerese, a "vaccine" is a program that seeks out & destroys these |
Computer viruses |
100 |
May 9, 1990 |
| A compass points toward this north pole |
Magnetic North Pole |
200 |
May 9, 1990 |
| Varieties of these simple plants include red, brown, green & blue-green |
Algae |
300 |
May 9, 1990 |
| Behaviorists & dogs drool over the work of this Russian physiologist |
Ivan Pavlov |
400 |
May 9, 1990 |
| The most abundant metal on Earth, when it was discovered in 1820 it was worth more than gold |
Aluminum |
500 |
May 9, 1990 |
| The mother of a mule |
Horse (Mare) |
100 |
November 10, 1989 |
| It's another name for your coccyx |
Tailbone |
200 |
November 10, 1989 |
| Union Carbide makes this common car additive that contains ethylene glycol |
Antifreeze |
300 |
November 10, 1989 |
| This unit of measure in weather is abbreviated mb |
Millibar |
400 |
November 10, 1989 |
| Frenchman who discovered the Piezoelectric Effect, that certain crystals when stressed make electricity |
Pierre Curie |
500 |
November 10, 1989 |
| After about eight weeks, a human embryo develops into this |
a fetus |
300 |
November 19, 1987 |
| At about 63,000 ft. at normal body temperature, blood will do this |
boil |
400 |
November 19, 1987 |
| Because they are never found in chemical compounds, the noble gases neon, argon & helium are called this |
the inert gases |
500 |
November 19, 1987 |
| Bioluminescence is the emission of this from living organisms |
light |
100 |
February 2, 1987 |
| Robotics is related to this "6 million dollar" field of science |
bionics (or cybernetics) |
200 |
February 2, 1987 |
| Of a quartan, joule, or kilocalorie, the one that is not a unit of energy |
a quartan |
300 |
February 2, 1987 |
| Element represented by the letters "Cu" |
copper |
400 |
February 2, 1987 |
| Term for the blood vessels which take the blood from the heart |
arteries |
100 |
December 31, 1986 |
| In the scientific categories, Americans have won 142, or 38%, of these awards 1st given in 1901 |
Nobel Prizes |
200 |
December 31, 1986 |
| The Hubble constant tells how fast the universe is expanding since this "noisy" event occurred |
the Big Bang |
300 |
December 31, 1986 |
| Base 10 equivalent to the binary number "11" |
3 |
400 |
December 31, 1986 |
| A metal that is "ductile" can be pulled into this while cold & under pressure |
wire |
500 |
December 31, 1986 |
| The only animal that has walked on the moon |
man |
100 |
January 14, 1986 |
| Not just "Ludwig von" but any male duck |
Drake |
200 |
January 14, 1986 |
| Research shows a mother eating a candy bar before doing this helps a baby fall asleep quicker |
nursing |
300 |
January 14, 1986 |
| Partly frozen rain or rain mixed with snow |
sleet |
400 |
January 14, 1986 |
| If our solar system fit into a cup, our galaxy would be the size of this 3rd largest continent |
North America |
500 |
January 14, 1986 |
| Most living organisms have millions, but a prisoner only has one |
a cell |
100 |
October 4, 1985 |
| A 5th C. B.C. Greek philosopher was 1st to theorize that all matter is made of these |
atoms |
200 |
October 4, 1985 |
| Term for creatures like vultures or hermit crabs that eat carcasses & refuse |
a scavenger |
300 |
October 4, 1985 |
| Days & nights are always 12 hours long there |
the equator |
400 |
October 4, 1985 |
| If you're studying mensuration, you're studying this |
measurement |
500 |
October 4, 1985 |
| A typical snowflake has this many sides |
6 |
100 |
December 10, 1984 |
| Common element whose refined forms include pig, cast or wrought |
iron |
200 |
December 10, 1984 |
| After length, width & depth, the 4th dimension |
time |
300 |
December 10, 1984 |
| Type of organism that lives off of another, contributing nothing |
a parasite |
400 |
December 10, 1984 |
| Shattering sound that accompanies breaking the sound barrier |
a sonic boom |
500 |
December 10, 1984 |
| A sound's repetition by reflection |
an echo |
100 |
November 29, 1984 |
| He originated "The Origin of Species" |
Charles Darwin |
200 |
November 29, 1984 |
| Singular form of the word "bacteria" |
bacterium |
300 |
November 29, 1984 |
| Negative particle that orbits an atom's nucleus |
an electron |
400 |
November 29, 1984 |
| Cytology is the study of these biological building blocks |
cells |
500 |
November 29, 1984 |