iron

Science Science 12 of 12 appearances
Practice Science

"iron" appearances by year

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All Science clues by year

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# Clue Answer As Given Value Round Category Air Date Show
Sedimentary deposits near Lake Superior produce the largest U.S. annual yield of hematite, the main ore of this metal iron DD $1,600 J SCIENCE CLASS 2023-09-11 #8926
Ferritin is a protein found in the liver & spleen that binds to this element for storage iron $400 DJ GENERAL SCIENCE 2016-01-01 #7205
(Sarah of the Clue Crew shows a geologic diagram on the monitor.) By studying seismic waves, scientists concluded that the earth can be divided intofour layers--the crust, mantle, a liquid outer core, & a solid inner core made mainly of this metal iron $2,000 DJ GENERAL SCIENCE 2012-08-02 #6434
Of copper, iron or aluminum, the one that would be most attracted to a magnet iron $400 DJ SCIENCE 2009-07-13 #5736
Scientists figure Mars isn't creme-filled, but has a liquid core made of this iron $1,000 J INSIDE SCIENCE 2004-04-20 #4527
Hematite is an important ore of this metal Iron $400 J SCIENCE STUFF 2000-09-07 #3679
Magnetism occurs most strongly in 3 elements: nickel, cobalt & this Iron $100 J SCIENCE 1997-02-06 #2869
Hematite is the chief ore of this metal iron $500 J GENERAL SCIENCE 1996-05-10 #2705
Ferrovanadium is an alloy of vanadium & this metal iron $100 J SCIENCE 1995-09-27 #2543
Scientists figure the earth's core to be mainly a heavy compressed lump of this metal iron $1,000 DJ PHYSICAL SCIENCE 1991-06-03 #1571
After aluminum, it's the 2nd most abundant metal in the earth's crust iron $200 DJ PHYSICAL SCIENCE 1987-12-08 #752
Common element whose refined forms include pig, cast or wrought iron $200 J SCIENCE 1984-12-10 #66
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