| #9053, aired 2024-03-06 | MIDDLE X $1000: The ore of aluminum bauxite |
| #9046, aired 2024-02-26 | ALLOYS $400: Magnalium is a strong, lightweight alloy of these 2 elements magnesium & aluminum |
| #8930, aired 2023-09-15 | IN YOUR ELEMENT $600: Most of what we call this elemental foil is actually made with aluminum tin |
| #8883, aired 2023-05-31 | DUDE, HERE'S YOUR CAR $2,200 (Daily Double): Lamborghini's Sesto Elemento was named for its pioneering use of this, from which much of the car is made carbon |
| #8868, aired 2023-05-10 | THE ELEMENTS $1200: An oxide of this element, atomic number 30, is used in sunscreens to provide protection from UV rays zinc |
| #13, aired 2023-02-02 | EASY MONEY $300: The doubloons thrown from Mardi Gras floats are often aluminum; the original doubloon was a Spanish coin made of this metal gold |
| #8771, aired 2022-12-26 | YOUR ELEMENTAL HIT PARADE $1600: Grandpa's hip enough to know nothing can replace this metal at No. 22 titanium |
| #8738, aired 2022-11-09 | TRAVEL $600: In 1936 the Clipper was the first of these sleek, silvery travel trailers made of aluminum an Airstream |
| #8718, aired 2022-10-12 | STEP UP TO THE PLATE $400: Prisoners really do make these; in Michigan, rolls of aluminum are used to produce about 10,000 per day license plates |
| #8712, aired 2022-10-04 | ALL THAT GLITTERS $800: Most glitter is made from a mix of polyethylene terephthalate & this element, commonly encountered in foil aluminum |
| #8652, aired 2022-05-31 | WOOD $600: This rhyming plane that flew in 1947 was made of a plywood composite called duramold, lighter & stronger than aluminum the Spruce Goose |
| #8597, aired 2022-03-15 | EVERYWHERE $1000: Used in making everything from airplanes to appliances, it's the most abundant metal in Earth's crust aluminum |
| #8564, aired 2022-01-27 | "AA" RATED $1200: Magnesium hydroxide & aluminum hydroxide are in this antacid Maalox |
| #8402, aired 2021-05-18 | "A" MATERIAL $400: Reynolds Wrap is a brand of this stuff aluminum foil |
| #8247, aired 2020-09-29 | YOU SAY IT'S YOUR BIRTHSTONE $1200: Catch some Zs (well, one) at the end of this aluminum silicate & November stone topaz |
| #8207, aired 2020-04-21 | SILICON VALLEY $1200: Mix up some of the Portland variety of this building material by combining calcium, silica, iron & aluminum cement |
| #8198, aired 2020-04-08 | ANAGRAMMED DORM ESSENTIALS $800: To deal with leftovers, it may actually be aluminum: ION LIFT tin foil |
| #8154, aired 2020-02-06 | SURINAME $2000: Alcoa began mining this aluminum ore in Suriname in 1916 but began pulling out in 2017 bauxite |
| #8139, aired 2020-01-16 | COINAGE $200: (Sarah of the Clue Crew drops a coin in water.) Made of this lightweight metal, Japan's 1-yen coin weighs only a gram and can float on water aluminum |
| #8135, aired 2020-01-10 | "F"OUR-LETTER WORDS $200: It can refer to a thin sheet of any metal, not just aluminum foil |
| #8125, aired 2019-12-27 | VWLSS LMNTS $200: LMNM aluminum |
| #8095, aired 2019-11-15 | THE NIFTY '50s $200: A toast to Coors, which started making its cans with this metal in 1959 aluminum |
| #7988, aired 2019-05-08 | THE ELEMENTS $200: Alcoa is the nation's largest producer of this element aluminum |
| #7958, aired 2019-03-27 | THE ELEMENTS $400: (Jimmy of the Clue Crew presents from SpaceX in Hawthorne, CA.) The Falcon 9 is 230 feet tall & weighs 1.2 million pounds, so its retractable landing legs have to be immensely strong; they're made of carbon fiber surrounding a honeycomb of this light but strong metal, atomic number 13 aluminum |
| #7943, aired 2019-03-06 | IN THE "MI"DDLE $400: In 1964 Royal Crown Cola introduced one of the first soft drink beverage cans made of this aluminum |
| #7827, aired 2018-09-25 | OCEAN LINERS $1200: The builders of the SS United States were so concerned with fire safety, they asked Steinway to make an aluminum this a piano |
| #7795, aired 2018-06-29 | MULTIPLE A's $600: "We invented the aluminum industry", says this company, AA on the New York Stock Exchange Alcoa |
| #7742, aired 2018-04-17 | ELEMENTARY $1000: Now seemingly everywhere, this lightweight metal was introduced to us at the 1855 Paris Exposition aluminum |
| #7734, aired 2018-04-05 | MINE-APOLIS $200: Galena, Illinois is so-named because Galena, a sulfide of this soft metal, was mined there lead |
| #7708, aired 2018-02-28 | SOME SERIOUS FOREIGN COIN $800: Redesigned in 1955, this coin was 100% aluminum a yen |
| #7697, aired 2018-02-13 | JAY LENO'S GARAGE $400: (Jay Leno presents the clue.) In the 50s and 60s France's Panhard PL 17 delivered excellent performance along with the then-remarkable future of 40 MPG thanks to a tiny but powerful 2-cylinder engine & weight-saving features like trim & bumpers made out of this lightweight material aluminum |
| #7682, aired 2018-01-23 | SOUNDS, INTERESTING $600: In the 1970s this metal brought a new sound to the national pastime aluminum |
| #7675, aired 2018-01-12 | OREGON $200: Giving refunds for glass & aluminum, Oregon's "Bottle Bill" of the 1970s was the first in the nation to encourage this recycling |
| #7562, aired 2017-06-27 | A-M $800: In 1825 Hans Oersted isolated this silvery-white metal aluminum |
| #7535, aired 2017-05-19 | THE QUEEN'S ENGLISH $1000: The queen wants you to add an "I" (& a syllable) to the name of this metal, atomic number 13 aluminum (or aluminium) |
| #7474, aired 2017-02-23 | MY "BA-E" $1000: Almost all aluminum comes from this ore bauxite |
| #7424, aired 2016-12-15 | WHAT'S THE BIG RUSH? $800: Mining cos. are rushing to MOMA--not an art museum but a Mozambique mine for this silvery metal used in planes titanium |
| #7343, aired 2016-07-13 | LEARN TO FLY $400: The first rigid airship, built in Germany in 1897, had a hull sheeted with this light metal aluminum |
| #7330, aired 2016-06-24 | DOUBLE "A" $2000: This antacid is named for its 2 main ingredients: magnesium hydroxide & aluminum hydroxide Maalox |
| #7316, aired 2016-06-06 | AIRCRAFT FOR THE AGES $800: (Kelly of the Clue Crew reports from the USS Intrepid Sea, Air & Space Museum in New York.) Flying at more than 2,000 miles per hour, the A-12 Blackbird generated temperatures of 1,000 degrees Fahrenheit, too high for aluminum, so its skin was made of this silvery gray, high-strength metallic element titanium |
| #7270, aired 2016-04-01 | ROCKS & MINERALS $800: Sial, the upper layer of the Earth's crust, primarily consists of these 2 elements silicon & aluminum |
| #7266, aired 2016-03-28 | THE 1880s $2000: Charles Martin Hall invented a cheap process for extracting aluminum from this ore bauxite |
| #7251, aired 2016-03-07 | OOH, LOOK, SHINY THINGS! $200: (Sarah of the Clue Crew holds a sparkler.) A common component of sparklers is the dust of this element, the most abundant metal in the Earth's crust; when the dirt ignites, it sparkles aluminum |
| #7097, aired 2015-06-23 | ALPHANUMERICS $800: (Kelly of the Clue Crew reports from the Western Reserve Historical Society in Cleveland, OH.) While many cars carry a standard V8 engine, the 1932 all-aluminum Peerless would blow them off the road by generating nearly 175 horsepower with this giant of an engine a V16 |
| #7086, aired 2015-06-08 | METAL $400: The so-called tinfoil you buy at the supermarket is probably made from this metal aluminum |
| #6948, aired 2014-11-26 | A VISIT TO TESLA $400: (Jimmy of the Clue Crew reports from Tesla Motors in Fremont, CA.) The body of each car begins with a giant 20,000-lb. coil of this metal, atomic #13, which will be stretched, bent, punched, painted & more before it's done aluminum |
| #6946, aired 2014-11-24 | DRAFT PICKS $200: Obviously avoiding the vampire demographic, a Silver Bullet aluminum pint is this brand Coors Light |
| #6906, aired 2014-09-29 | THE CHICAGO BOARD OF TRADE $1000: (Jimmy of the Clue Crew reports from outside the Chicago Board of Trade.) Chicago has long been the center of the American grain trade; in 1930, an aluminum statue of this Roman goddess of grains was placed atop the Chicago Board of Trade building to symbolize the city's agricultural roots Ceres |
| #6787, aired 2014-03-04 | ALL AROUND AMERICA $1200: John Milkovisch made the aluminum siding at his Houston home from 50,000 of these former cold ones beer cans |
| #6770, aired 2014-02-07 | "DUM" IT UP $1600: AKA aluminum oxide, it's used as an abrasive corundum |
| #6761, aired 2014-01-27 | EUROPEAN FOUNTAINS $1200: The Eros statue in the Shaftesbury Memorial Fountain in this London "Circus" was one of the first to be made of aluminum Piccadilly Circus |
| #6725, aired 2013-12-06 | METALS $800: Recycling this metal takes only about 5% of the energy needed to produce it from its ore, bauxite aluminum |
| #6527, aired 2013-01-22 | METALS $1600: This element, the lightest of the metals, has a density that's about half that of water lithium |
| #6396, aired 2012-06-11 | THE HELOISE WITH YOU $1000: "Instead of throwing away" this material when it's done wrapping food, "use it as a pot and pan scrubber" aluminum foil |
| #6385, aired 2012-05-25 | FUN WITH ELEMENTS $2,000 (Daily Double): Bauxite is where you'll find this element, the most abundant metal in the earth's crust aluminum |
| #6300, aired 2012-01-27 | LESSER-KNOWN SCIENTISTS $400: The "crown jewels" of Alcoa are the bits of this metal that chemist Charles Hall isolated when he was just 22 aluminum |
| #6249, aired 2011-11-17 | AIRSHIPS $400: In 2011 this firm announced it was phasing out its blimps in favor of rigid airships with aluminum & carbon skeletons Goodyear |
| #6213, aired 2011-09-28 | INVENTORS & INVENTIONS $200: In 1949 Ed Seymour invented paint dispensed this way; aluminum was the first color spray paint |
| #6174, aired 2011-06-16 | FUN WITH ELEMENTS $600: You'll find a short term for a graduate of a particular college in this abundant metallic element aluminum |
| #6147, aired 2011-05-10 | THE PERIODIC TABLE $600: Don't take this the wrong way: it's the most used & cheapest metal iron |
| #6127, aired 2011-04-12 | ELEMENT ETYMOLOGY $2,200 (Daily Double): Although a soft, light metal, it has a name from the Greek for "stony" lithium |
| #6116, aired 2011-03-28 | ELEMENT, SPEL-EMENT $800: Boron,
aluminum,
potassium B Al K |
| #6060, aired 2011-01-07 | TAKING STOCK, SYMBOLICALLY $400: AA doesn't stand for aluminum, aluminum, but this company Alcoa |
| #6005, aired 2010-10-22 | REAL SIMPLE new uses for old things $400: Put a sheet of this between your TV & DVD player to keep comingling electromagnetic fields from distorting the picture aluminum foil |
| #6002, aired 2010-10-19 | CLASSIC TOYS $1000: The Telecran, a drawing toy with a joystick, glass & aluminum powder was the basis for this classic toy the Etch A Sketch |
| #5972, aired 2010-07-27 | FERROUS, BUELLER $200: Iron, which makes up 5% of the Earth's crust, is 2nd in abundance to this among metals, which must please Alcoa aluminum |
| #5952, aired 2010-06-29 | ARCHITECTS $1200: In the 1970s this Chinese American designed the aluminum-clad skyscraper at 88 Pine Street in New York City I.M. Pei |
| #5925, aired 2010-05-21 | ORES $2000: This principal ore of aluminum is also used for oil filtration & the making of abrasives bauxite |
| #5861, aired 2010-02-22 | THE ALLOYS $400: Duralumin is over 90% this aluminum |
| #5856, aired 2010-02-15 | COMPANY NAME ORIGINS $200: The "Al" in Alcoa stands for this aluminum |
| #5736, aired 2009-07-13 | SCIENCE $400: Of copper, iron or aluminum, the one that would be most attracted to a magnet iron |
| #5688, aired 2009-05-06 | IT'S ELEMENTARY $200: Today most of the "tin" foil that we use is made from this other metal aluminum |
| #5646, aired 2009-03-09 | MATERIAL $200: Coke cans are an average 60% recycled this metal aluminum |
| #5625, aired 2009-02-06 | COMPOUNDS $400: An amphoteric compound like aluminum hydroxide can act either as an acid or as this a base |
| #5592, aired 2008-12-23 | JAMAICA, JORDAN OR JAPAN $1000: Its leading exports are bauxite & aluminum Jamaica |
| #5570, aired 2008-11-21 | SOUNDS LIKE FUN $1600: It's a kite-like, delta-winged, aluminum alloy-framed, one-man soaring device a hang glider |
| #5558, aired 2008-11-05 | ELEMENTAL PROBLEMS $400: "Physician ____ thyself" heal: helium & aluminum |
| #5526, aired 2008-09-22 | RACING BIKES $800: (Jon of the Clue Crew holds a bicycle frame at Trek Bicycle Corporation in Waterloo, WI.) Trek uses a proprietary method of optimum compaction & low void to maximize strength & minimize weight of frames & parts made of this element carbon |
| #5526, aired 2008-09-22 | RACING BIKES $1600: (Sarah of the Clue Crew looks over a welder's shoulder at Trek Bicycle Corporation in Waterloo, WI.) Hydroformed alloys of aluminum used in the frame keep the weight down while maintaining this, from the Latin for "stiffness" rigidity |
| #5513, aired 2008-07-23 | O BEFORE E $200: This watercraft is usually made of aluminum or fiberglass; you don't see many dug-out logs these days a canoe |
| #5485, aired 2008-06-13 | LITTLE LEAGUE BASEBALL $400: (Jimmy lays another clue down from Williamsport, PA.) Unlike Major League Baseball, Little League batters may use non-wood bats; most are made of this metal that has a distinctive sound when it meets the ball aluminum |
| #5479, aired 2008-06-05 | OZ $1600: Buddy Ebsen was hired to play this character but had to quit after he developed an allergy to aluminum dust the Tin Man |
| #5469, aired 2008-05-22 | CHEMISTRY $1200: Alnico magnets are so named because they're alloys of aluminum, nickel & this cobalt |
| #5421, aired 2008-03-17 | ELEMENTARY $1000: This ductile, nonradioactive element has an atomic weight of 26.98 aluminum |
| #5388, aired 2008-01-30 | METALS $800: (Cheryl of the Clue Crew uses a magnet on a beverage can and a food can.) In separating recyclables, a magnet is used because it will not attract aluminum, but will attract this metal, the main constituent of what we call tin cans steel |
| #5312, aired 2007-10-16 | SPEL-EMENTS $200: Helium,
aluminum heal (He-Al) |
| #5289, aired 2007-09-13 | CAKES $600 (Daily Double): This aluminum cake pan that sounds like a baseball play was invented by H. David Dalquist in the early 1950s Bundt cake |
| #5274, aired 2007-07-12 | TIME TO SAVE $1200: An incentive to save aluminum cans for recycling; the return of this money paid as security deposit |
| #5220, aired 2007-04-27 | THIS OLD HOUSE: THE AUSTIN PROJECT $1600: A hologram contrasts the old heat-absorbing asphalt roof & the new reflective one of galvanized this light metal aluminum |
| #5173, aired 2007-02-21 | MAGNETO $1600: An alnico magnet is an alloy having these 3 elements as its principal ingredients aluminum, nickel, cobalt |
| #5151, aired 2007-01-22 | GEOLOGY $1200: Andalusite, an aluminum silicate mineral, was named for the region in this country where it was discovered Spain |
| #5133, aired 2006-12-27 | BIG BUSINESS $800: In 1947 this tinfoil brand was Reynolds Aluminum's first consumer product Reynolds Wrap |
| #5126, aired 2006-12-18 | NECKWEAR $1000: In WWI, it became mandatory that all U.S. soldiers wear these "canine" aluminum discs on neck chains dog tags |
| #5120, aired 2006-12-08 | GEMSTONES $800: Native Americans believed this blue-green hydrous phosphate of aluminum & copper protected them turquoise |
| #5049, aired 2006-07-20 | LET'S START A CLUB $200: (Sarah of the Clue Crew reports from the manufacturing facilities of Ping Hdqtrs in Phoenix, AZ.) At Ping, the first step of making golf irons is injecting hot wax into a mold of this malleable, silver-white metallic element aluminum |
| #4997, aired 2006-05-09 | ALPHABETICALLY FIRST $2000: Of non-radioactive chemical elements aluminum |
| #4995, aired 2006-05-05 | BRITISH SPELLING BEE $1000: Good Britons recycle this metal in their soft-drink cans A-L-U-M-I-N-I-U-M |
| #4972, aired 2006-04-04 | SESAME STREET EATS $400: (Alex visits Oscar the Grouch's aluminum abode on Sesame Street.)
"You know what, Oscar? On my pizza, I'm one of those people who really likes this calcium-rich herring relative. What about you?"
"Well, I like 'em in my milkshakes."
"What? You're not serious."
"Heh heh." anchovies |
| #4849, aired 2005-10-13 | LITTLE LEAGUE BASEBALL $600: Unlike Major Leaguers, Little Leaguers may use bats made from this metal, atomic number 13 aluminum |
| #4725, aired 2005-03-04 | CANADA, "A"? $600: Once part of Alcoa, this Canadian company with a 5-letter name is a giant in world aluminum manufacturing Alcan |
| #4708, aired 2005-02-09 | GOOD CONDUCTORS $400: Not as good a conductor as copper but a lot cheaper, it's the default metal for U.S. high-voltage power lines aluminum |
| #4679, aired 2004-12-30 | DESIGN $400: In 1965 aeronautical engineer Owen MacLaren made a folding aluminum one of these for his parents a stroller |
| #4652, aired 2004-11-23 | METALS $2000: Named by British scientist Humphry Davy, it's now pronounced & spelled his way in the U.S.; others add an "I" aluminum |
| #4540, aired 2004-05-07 | ELEMENT-ARY SCHOOL $800: Indium is an element in the family of this popular wrap metal aluminum |
| #4474, aired 2004-02-05 | ISLAND HOPPING $2000: Jamaica is a leading source of this ore from which aluminum is extracted bauxite |
| #4471, aired 2004-02-02 | NOTED BLACK AMERICANS $400: (Jimmy of the Clue Crew is holding an aluminum bat.) The first national winner of Hillerich & Bradsby's Silver Bat Award in 1949 was this Dodger second baseman Jackie Robinson |
| #4465, aired 2004-01-23 | METALS $800: Atomic number 13, you touch it when you unwrap a stick of Wrigley's chewing gum aluminum |
| #4371, aired 2003-09-15 | WATER SPORTS $2000: The introduction of aluminum made this type of diving board more flexible, giving divers more height springboard |
| #4359, aired 2003-07-10 | THE SILVER SCREEN $800: This 1987 Danny DeVito-Richard Dreyfuss film about aluminum siding salesmen was set in 1963 Baltimore Tin Men |
| #4346, aired 2003-06-23 | BUSINESS & INDUSTRY $1000: A color version of this toy was introduced in 1993 & it didn't use a stylus & aluminum powder Etch A Sketch |
| #4320, aired 2003-05-16 | ELEMENT SYMBOL SPELLING $200: Helium,
aluminum heal (He Al) |
| #4311, aired 2003-05-05 | GENERAL SCIENCE $800: This aluminum ore is named for the French village near where it was discovered in 1821 bauxite |
| #4273, aired 2003-03-12 | YOU DESERVE A METAL $1200: In case you're keeping tabs, it's the most plentiful metal in the Earth's crust aluminum |
| #4264, aired 2003-02-27 | IN THE HARDWARE STORE $800: Get ready for summer by putting in these, generally made of either aluminum or fiberglass screens |
| #4246, aired 2003-02-03 | U.S. COINS $400: In 1973 Congress thought about making pennies in this light metal, but the copper industry objected aluminum |
| #4196, aired 2002-11-25 | CORPORATE HEADQUARTERS $200: Logically, Alcoa's new corporate headquarters, completed in 1998, used 800,000 pounds of this aluminum |
| #4161, aired 2002-10-07 | "I" OBJECT $600: You're on the money if you know that it's a bar or block of metal like aluminum, steel or gold an ingot |
| #4124, aired 2002-07-04 | THE FLAGPOLE $800: 50 aluminum flagpoles encircle this D.C. landmark the Washington Monument |
| #4098, aired 2002-05-29 | CHEMISTRY EXPERIMENTS $1000: By putting silver & aluminum together in a solution, you can remove tarnish, caused by this element with the symbol S sulfur |
| #4003, aired 2002-01-16 | MARDI GRAS $1200: (Sarah of the Clue Crew reports from New Orleans.) Mardi Gras float riders in New Orleans toss souvenirs to the crowd, including plastic beads & aluminum coins called these doubloons |
| #3971, aired 2001-12-03 | "UM" $1000: A silvery-white metallic element with the atomic number 13 aluminum |
| #3913, aired 2001-09-12 | ELEMENT & STATE $200: Al (AL) aluminum & Alabama |
| #3880, aired 2001-06-15 | HELP ME WITH THIS CROSSWORD! $400: Aluminum silicate mineral:
[6 Across: F E _ D S P A _] Feldspar |
| #3871, aired 2001-06-04 | LET'S GET GRAPHIC $300: This is not all good; in fact, it's colored aluminum:
[video clue] Glitter |
| #3828, aired 2001-04-04 | HEADQUARTER CITIES $800: Aluminum Company of America Pittsburgh |
| #3782, aired 2001-01-30 | SO YOU WANT TO BE A FIREFIGHTER $300: A physical exam may require you to lift & extend a 20- or 24-foot aluminum one of these Ladder |
| #3765, aired 2001-01-05 | "ART" CLASS $500: Made of plastic & aluminum, the Jarvik-7 is this type of device Artificial heart |
| #3731, aired 2000-11-20 | ROCK ME $300: A basic copper aluminum phosphate, it's the type of stone used here in an ancient Aztec ornament Turquoise |
| #3716, aired 2000-10-30 | METALS $400: As its name implies, an alnico magnet is composed mainly of these 3 metals aluminum, nickel & cobalt |
| #3702, aired 2000-10-10 | NONPRECIOUS METALS $200: This drink-can metal forms an oxide layer that helps protect it from corrosion Aluminum |
| #3696, aired 2000-10-02 | SCIENCE CLASS $500: The name of this lightest of all metals, symbol Li, comes from the Greek for "stone" lithium |
| #3677, aired 2000-09-05 | HAVE YOU EVER SEEN BAHRAIN? $200: In production of this, the U.S. has ALCOA & Bahrain has ALBA, one of its largest non-oil companies Aluminum |
| #3675, aired 2000-07-21 | JADED $500: The formula NaAlSi2O6 tells you these 4 chemical elements make up jadeite Sodium, aluminum, silicon & oxygen |
| #3585, aired 2000-03-17 | SCIENTISTS $400: It wasn't until this metal became cheap enough that Zeppelin could make the dirigible of his dreams Aluminum |
| #3583, aired 2000-03-15 | TV & MOVIE ACTORS $1000: John Mahoney of "Frasier" played one of the guys who sold aluminum siding in this Barry Levinson film Tin Men |
| #3579, aired 2000-03-09 | MODERN SPORTS EQUIPMENT $500: A triangular sail,
an aluminum frame,
harness Hang gliding |
| #3577, aired 2000-03-07 | FIRST THINGS FIRST $500: In 1947 R.S. Reynolds of Kentucky began producing 12" wide rolls of this Aluminum foil |
| #3445, aired 1999-07-23 | ELEMENT SYMBOL SPELLING $1000: Sodium,
sulfur,
aluminum Nasal (Na S Al) |
| #3252, aired 1998-10-27 | SCIENCE $500: To produce this metal using the Bayer Process, you begin with caustic soda & bauxite Aluminum |
| #3244, aired 1998-10-15 | HUNGARY? $100: Hungary's main mineral resource is bauxite, the ore that yields this easily "foil"ed metal Aluminum |
| #3238, aired 1998-10-07 | BUSINESS & INDUSTRY $600: Organized in 1888, this Pittsburgh-based firm is the world's largest producer of aluminum products Alcoa |
| #3154, aired 1998-04-23 | LEX' LAB $100: The most abundant metal in the Earth's crust, Lex wraps his lunch in sheets of it Aluminum |
| #3122, aired 1998-03-10 | PACKAGING $100: This metal is alloyed with 1% manganese to make it rigid enough for soda cans Aluminum |
| #3120, aired 1998-03-06 | WHAT'S THE MATTER? $200: Soda can,
Reynolds Wrap,
siding aluminum |
| #3009, aired 1997-10-02 | THAT'S A WRAP! $400: In 1947 this company introduced its aluminum foil "wrap" Reynolds |
| #2950, aired 1997-05-30 | THE ELEMENTS $1000: In 1827 Friedrich Wohler produced this metal, the Earth's most common, as a powder Aluminum |
| #2935, aired 1997-05-09 | WORLD CURRENCY $400: The aluminum & bronze schilling coin of this country is equivalent to 100 groschen Austria |
| #2883, aired 1997-02-26 | BUSINESS & INDUSTRY $400: In 1982 this aluminum foil company introduced its product plastic wrap Reynolds |
| #2877, aired 1997-02-18 | AMERICAN MONEY $500: 1943 pennies were coated with this metal, now used as the penny's core zinc |
| #2847, aired 1997-01-07 | CORPORATE AMERICA $100: While Alco Standard distributes paper products, ALCOA is known for products made of this material Aluminum |
| #2820, aired 1996-11-29 | THE ELEMENTS $400: Duralumin is an alloy of aluminum, copper, & these two similar-sounding elements, Mn & Mg Manganese & Magnesium |
| #2731, aired 1996-06-17 | ROCKS & MINERALS $400: This ore of aluminum was named for Les Baux, a place in southeast France bauxite |
| #2712, aired 1996-05-21 | METALS $100: In Italian this metal is called alluminio aluminum |
| #2700, aired 1996-05-03 | POTS & PANS $400: It's the metal of choice for a caramelizing pot copper |
| #2686, aired 1996-04-15 | THE 1880s $400: In 1886 Charles M. Hall developed the electrolytic method for getting this metal from bauxite Aluminum |
| #2665, aired 1996-03-15 | METALS $500: This metal 2/3 the weight of aluminum burns with a brilliant white light & is used in flares magnesium |
| #2646, aired 1996-02-19 | THE 1820s $400: When Hans Christian Oersted announced he had isolated this metal, people may have told him to can it aluminum |
| #2639, aired 1996-02-08 | SCIENCE $500: The Hall-Heroult process is used to produce this light metal, the most abundant in the Earth's crust aluminum |
| #2580, aired 1995-11-17 | BUSINESS & INDUSTRY $400: Aluminum Company of America, popularly called this, was the first industrial user of power from Niagara Falls Alcoa |
| #2570, aired 1995-11-03 | METALS $500: This lightest metal tarnishes rapidly when exposed to air lithium |
| #2530, aired 1995-09-08 | THE ELEMENTS $500: Copper, magnesium, manganese & this element form an alloy called duralumin aluminum |
| #2516, aired 1995-07-10 | BUSINESS & INDUSTRY $400: In 1941 this company built its first aluminum foil plant in Alabama Reynolds |
| #2515, aired 1995-07-07 | 20th CENTURY DESIGN $800: Lighter than steel, this metal is also associated with the Modernist style of the '20s & '30s aluminum |
| #2492, aired 1995-06-06 | HODGEPODGE $300: In the 1860s Napoleon III had his finest dinner spoons made of this light metal aluminum |
| #2427, aired 1995-03-07 | METALS $400: Humphry Davy named this light metal used for cookware & beverage cans but never saw it aluminum |
| #2407, aired 1995-02-07 | THE ELEMENTS $600: Henri Sainte-Claire Deville developed a method for the industrial production of this light metal aluminum |
| #2392, aired 1995-01-17 | ECOLOGY $100: To tell the difference between aluminum & steel cans, use one of these; it'll stick only to the steel cans a magnet |
| #2383, aired 1995-01-04 | COOKING $300: This "colorful Massachusetts" bread can be steamed in a coffee can covered with aluminum foil (Boston) brown bread |
| #2373, aired 1994-12-21 | BUSINESS & INDUSTRY $300: Aluminum sheet metal used in beverage cans is the biggest product of this Pittsburgh company ALCOA |
| #2368, aired 1994-12-14 | SCIENCE $1000: This lightest of all metals was discovered by Swedish chemist Johann Arfvedson in 1817 lithium |
| #2352, aired 1994-11-22 | GEOLOGY $400: This aluminum ore was discovered at Le Bau, France Bauxite |
| #2341, aired 1994-11-07 | THE ELEMENTS $100: This metal, Al, used in beverage cans & food wrap was once considered a precious metals aluminum |
| #2281, aired 1994-07-04 | BUSINESS & INDUSTRY $600: This firm was founded as the U.S. Foil Company in 1919 to supply tinfoil for cigarette wrappers Reynolds Aluminum |
| #2222, aired 1994-04-12 | THE EARTH $1000: 1 of the 2 metals that together make up about 13% of the weight of the Earth's crust iron (or aluminum) |
| #2206, aired 1994-03-21 | ARKANSAS $400: Nearly all U.S.-mined bauxite, an ore of this metal, comes from Arkansas aluminum |
| #2201, aired 1994-03-14 | METALS $400: This, the Earth's most abundant metal, is sometimes anodized for use as a building material aluminum |
| #2161, aired 1994-01-17 | NATIONAL MEMORIALS $400: This 555-foot, 5 1/8-inch tall structure has a 9-inch solid aluminum tip the Washington Monument |
| #2140, aired 1993-12-17 | COINS $200: This Japanese coin equal to 100 sen is made of aluminum a yen |
| #2140, aired 1993-12-17 | SCIENCE & NATURE $600: About half as heavy as water, it's the lightest of all metals lithium |
| #2130, aired 1993-12-03 | SCIENCE $400: The surfaces of this type of element can be anodized metal |
| #2089, aired 1993-10-07 | CHEMISTRY $1000: In the Bayer process, purified aluminum oxide is obtained from this ore bauxite |
| #2085, aired 1993-10-01 | THE WEST INDIES $1000: Jamaica is one of the world's leaders in the production of this ore from which aluminum is extracted bauxite |
| #2055, aired 1993-07-09 | TRANSPORTATION $500: Reynolds Metals donated the Aluminaut, the 1st all-aluminum one of these, to the Science Museum of Virginia a submarine |
| #2054, aired 1993-07-08 | HELPFUL HINTS $100: If you line a serving basket with this reflective material, your hot rolls will stay hot longer aluminum foil |
| #2041, aired 1993-06-21 | THE ELEMENTS $800 (Daily Double): Though it's the third most common element in the Earth's crust, this metal wasn't found until 1825 aluminum |
| #2034, aired 1993-06-10 | METALS $400: The tip of the Washington Monument is protected by a cap of this metal now used in drink cans aluminum |
| #2022, aired 1993-05-25 | SCIENCE $600: Since 1982 U.S. pennies have been made primarily of this metal thinly coated with copper zinc |
| #1975, aired 1993-03-19 | WORLD FACTS $200: In Venezuela aluminum ranks second only to this as the most valuable export oil |
| #1969, aired 1993-03-11 | WORLD GEOGRAPHY $600: Bauxite, an ore of this light metal, makes up much of Greece's mineral wealth aluminum |
| #1936, aired 1993-01-25 | METALS $500: Prestal, which can be molded like plastic, is an alloy of zinc & this light metal aluminum |
| #1931, aired 1993-01-18 | PLANES $500: For about 10 years, 1982-92, this plane sat under a 415'-diameter aluminum dome in Long Beach the Spruce Goose |
| #1834, aired 1992-07-16 | METALS $2,000 (Daily Double): Except for iron & steel, the world uses more of this metal than any other aluminum |
| #1815, aired 1992-06-19 | BUSINESS & INDUSTRY $600: Alcan, once a part of this aluminum company, has been on its own since 1928 Alcoa |
| #1806, aired 1992-06-08 | RECYCLING $200: Doing this to aluminum cans makes it easier to store & transport them crushing them |
| #1792, aired 1992-05-19 | ALUMINUM $200: In 1962 Alcoa introduced pull tabs & aluminum ends on these cans |
| #1792, aired 1992-05-19 | ALUMINUM $400: In English-speaking countries other than the U.S., aluminum is called this aluminium |
| #1792, aired 1992-05-19 | ALUMINUM $600: Cryolite, once used in making aluminum, is found in large quantities only on this large Danish island Greenland |
| #1792, aired 1992-05-19 | ALUMINUM $800: This aluminum ore gets its name from Les Baux, France, where it was discovered bauxite |
| #1792, aired 1992-05-19 | ALUMINUM $1000: 1 of 2 elements more abundant than aluminum in the Earth's crust silicon (or oxygen) |
| #1774, aired 1992-04-23 | SWIMMING & DIVING $300: Competition diving boards made of this metal appeared in the 1960s, making higher dives possible aluminum |
| #1697, aired 1992-01-07 | METALS $200: What we sometimes call tinfoil may be made of tin or this metal aluminum |
| #1667, aired 1991-11-26 | PHYSICAL SCIENCE $200: While it makes up more of the earth's crust than iron, its ore, bauxite, is rarer than iron ore aluminum |
| #1619, aired 1991-09-19 | SOUTH AMERICA $100: Chile's most important export is this metal used in electrical wiring copper |
| #1600, aired 1991-07-12 | SCIENCE $100: Duralumin is a light, hard alloy consisting mostly of this metal aluminum |
| #1587, aired 1991-06-25 | METALS $600: In the United States recycling accounts for 1/4 of the production of this metal aluminum |
| #1560, aired 1991-05-17 | THE MOON $400: The most common compound on Earth, none of it has been found on the Moon water (H2O) |
| #1541, aired 1991-04-22 | NUCLEAR PHYSICS $200: Paper can stop alpha particles, a thin piece of aluminum, beta particles, & a sheet of lead, these rays X-rays (gamma rays) |
| #1467, aired 1991-01-08 | MOVIE TRIVIA $500: It's what Richard Dreyfuss & Danny DeVito sold as "Tin Men" aluminum siding |
| #1443, aired 1990-12-05 | ROCKS & MINERALS $400: As its name indicates, the sial that composes much of Earth's crust contains these two elements silicon & aluminum |
| #1323, aired 1990-05-09 | SCIENCE $500: The most abundant metal on Earth, when it was discovered in 1820 it was worth more than gold aluminum |
| #1203, aired 1989-11-22 | COOKING $500: Pots & pans made of this metal don't conduct heat all that well but are the easiest to clean stainless steel |
| #1097, aired 1989-05-16 | SCIENCE $500: This light metal is the most abundant metal in the earth's crust aluminum |
| #1074, aired 1989-04-13 | HOMOPHONES $400: Steal aluminum foil or accept blame for someone else who did take the wrap (take the rap) |
| #1058, aired 1989-03-22 | HINTS FROM HELOISE $500: Use this, dull side out, as a sturdy wrap for packages sent through the mail freezer wrap |
| #1018, aired 1989-01-25 | EGGS $200: "Joy of Cooking" says not to use a bowl made of this metal when beating eggs, as it will cause the eggs to gray aluminum |
| #1012, aired 1989-01-17 | TECHNOLOGY $100: In the '60s most U.S. beverage cans were made of steel; now most are made of this aluminum |
| #970, aired 1988-11-18 | CORPORATE AMERICA $300: The "Al" in Alcoa stands for this aluminum |
| #931, aired 1988-09-26 | CHEMISTRY $800: You can clean silverware by boiling it in an aluminum pan using a solution of this, NaHCO3 sodium bicarbonate (baking soda) |
| #925, aired 1988-09-16 | 9-LETTER WORDS $100: To car buffs, a "mag" was originally a lightweight wheel made of this metal magnesium |
| #881, aired 1988-06-06 | WWI PLANES $400: The frames of most WWI planes were made of wood & steel, but the Breguet 14 also used this light metal aluminum |
| #871, aired 1988-05-23 | MINERALS $100: 3-letter term for the rocks mined for aluminum, iron or lead among others ore |
| #866, aired 1988-05-16 | IN THE KITCHEN $200: Heloise says after this wrap has been used, it can be reused as a pot & pan scrubber aluminum foil |
| #841, aired 1988-04-11 | HINTS FROM HELOISE $100: To keep these from cracking when you boil them, wrap them in aluminum foil eggs |
| #835, aired 1988-04-01 | ROCKS & MINERALS $200: Of packaging, transportation or building, it's the main use of aluminum in the U.S. packaging |
| #783, aired 1988-01-20 | COLORADO $200: Colorado leads the nation in the production of molybdenum, a metal that hardens this alloy steel |
| #752, aired 1987-12-08 | PHYSICAL SCIENCE $200: After aluminum, it's the 2nd most abundant metal in the earth's crust iron |
| #700, aired 1987-09-25 | KITCHEN FIRSTS $200: Made by Henry Avery in 1890, the 1st saucepan made of this metal was used until 1933 by Mrs. Avery aluminum |
| #615, aired 1987-04-17 | CONSERVATION $800: Coca-Cola has decided to shelve cans made of this until they perfect a recycling system plastic |
| #606, aired 1987-04-06 | THE EARTH $1000: Geologists named the material of the Earth's crust "sial'" because of these 2 main elements silicon & aluminum |
| #573, aired 1987-02-18 | METALS $500: Common metal made from bauxite ore aluminum |
| #553, aired 1987-01-21 | BICYCLES $400: Weighing far less than steel, Lexan is one type of this lightweight material sometimes used for frames plastic |
| #521, aired 1986-12-08 | BUSINESS & INDUSTRY $200: Family in which R.S. began a business making tin foil for Uncle R.J.'s cigarette packs Reynolds |
| #414, aired 1986-04-10 | BUSINESS & INDUSTRY $400: After 31 years of use, Swanson's is retiring this part of their TV dinners aluminum pan |
| #389, aired 1986-03-06 | COINS $200: Due to its lightness, coins made from this metal are difficult to use in vending machines aluminum |
| #385, aired 1986-02-28 | RAW MATERIALS $1000: According to U.S. Bureau of Mines, in 1984, this, not aluminum, was the most recycled metal iron (or steel) |
| #364, aired 1986-01-30 | ECOLOGY $200: In 1972, Oregon became 1st state to prohibit sale of beverages in these containers (nonrefundable) bottles |
| #363, aired 1986-01-29 | PHYSICAL SCIENCE $400: The oxide of this common lightweight metal forms rubies & sapphires aluminum |
| #356, aired 1986-01-20 | BUSINESS & INDUSTRY $400: America must import 96% of its bauxite, from which this metal is derived aluminum |
| #291, aired 1985-10-21 | TENNESSEE $200: Alcoa, Tenn. is noted for the manufacture of this metal aluminum |
| #182, aired 1985-05-21 | GEOLOGY $800: Aluminum silicate, or a '60s Leon Uris spy story which became a Hitchcock film topaz |
| #151, aired 1985-04-08 | POP QUIZ $200: Reynolds created the 1st one for pop in 1963 the aluminum can |
| #138, aired 1985-03-20 | MOVIES $300: Wall coating that WWII Oscars were "cast" in plaster |
| #135, aired 1985-03-15 | CHEMISTRY $100: The British call this element aluminium aluminum |
| #100, aired 1985-01-25 | INSIGNIAS $500: On the side of an aluminum can, two arrows forming a circle stand for this recyclable |
