Explore the fundamental principles and latest discoveries across physics, chemistry, biology, and astronomy. This topic covers scientific methods and breakthroughs.
Science offers a universe of precision and wonder for crossword puzzles, challenging solvers with terms from biology, chemistry, physics, and astronomy. From atomic structures and genetic codes to distant galaxies and theoretical concepts, this category provides a rigorous yet rewarding experience. Clues can range from common scientific phenomena to complex terminology, often requiring logical deduction and specialized knowledge, making them perfect for those who enjoy a cerebral challenge and a journey of discovery.
Crossword clues used in science puzzles, with answers and links to play.
“The smallest structural unit of a living organism.”
CELL (4)
“The form of energy that allows us to see”
LIGHT (5)
“A clear liquid essential for all known life”
WATER (5)
“A massive luminous sphere of plasma in space”
STAR (4)
“Attractive forces that hold atoms together within molecules”
BONDS (5)
“Substance that accelerates a reaction without being consumed”
CATALYST (8)
“Malleable post-transition metal designated by Sn”
TIN (3)
“Inert noble gas glowing reddish-orange in high-voltage signs”
NEON (4)
“Rapid exothermic chemical reaction between fuel and an oxidant”
COMBUSTION (10)
“Dense, toxic heavy metal bearing the symbol Pb”
LEAD (4)
“Binary compound containing oxygen bound to another element”
OXIDE (5)
“Outermost electrons responsible for dictating chemical reactivity”
VALENCE (7)
“Ubiquitous compound composed of two hydrogens and one oxygen”
WATER (5)
“Chemical change characterized by the loss of electrons”
OXIDATION (9)
“Undergo a rapid phase transition from liquid into vapor”
BOIL (4)
“Shift from a rigid solid into a fluid state by absorbing heat”
MELT (4)
“Pure substance composed entirely of atoms with identical proton counts”
ELEMENT (7)
“Flaky reddish product of iron reacting with oxygen and water”
RUST (4)
“Direct physical phase change from solid to gas without melting”
SUBLIMATION (11)
“Magnetic metal whose symbol derives from ferrum”
IRON (4)
“Basic building block of all chemical elements”
ATOM (4)
“Substance formed when two or more elements chemically unite”
COMPOUND (8)
“Dense element denoted by the symbol Pb”
LEAD (4)
“Pure chemical substance that cannot be broken down by ordinary reactions”
ELEMENT (7)
“Undergo a physical change from solid to liquid”
MELT (4)
“Starting material consumed during a chemical transformation”
REACTANT (8)
“Flaky reddish product formed by iron oxidation”
RUST (4)
“Versatile tetravalent backbone of all organic molecules”
CARBON (6)
“Lustrous, conductive element located on the left and center of the table”
METAL (5)
“Ionic compounds produced alongside water during acid-base neutralization”
SALTS (5)
Showing the first 30 of 244 clues. Visit each puzzle to see all its clues.
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