Physics & Chemistry

Common Chemical Compounds and Their Everyday Names Trivia Word Search

99 original clues · new puzzle every time you play

Test your knowledge of Common Chemical Compounds and Their Everyday Names with a free trivia word search from thewordfind.com. Read each clue, work out the answer, then find it hidden in the letter grid — every puzzle is freshly generated, so no two plays are ever quite the same. Don't know an answer? Tap the hint button in-game to reveal the first letter, or just scan the grid — every answer is hiding in there somewhere. Between the clues and the full answer key below, this topic doubles as a quick study guide — good for a trivia night, a classroom quiz, or just picking up something new about Common Chemical Compounds and Their Everyday Names along the way.

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A few sample clues

FeS2 is a brassy, metallic-looking mineral nicknamed 'fool's gold.'

_ _ _ _ _ _

This ion, Cl-, combines with sodium to form ordinary table seasoning.

_ _ _ _ _ _ _ _

This hormone compound, produced in the pancreas, regulates blood sugar levels.

_ _ _ _ _ _ _

This zinc oxide-based lotion is dabbed on to soothe poison ivy rash and itching.

_ _ _ _ _ _ _ _

O3 is a gas that forms a protective layer high in Earth's stratosphere.

_ _ _ _ _

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All 99 questions in this topic, with answers — use it to study, or just browse. Every actual play of the puzzle only pulls a random handful of these into one game, so knowing them all here won't spoil which ones show up or where they're hidden in the grid. Play it here.

Sodium hydroxide, NaOH, is a caustic substance traditionally used in soap-making.

LYE

This weak acid, used as a mild antiseptic, eyewash ingredient and roach killer, is called _ _ _ _ _ acid.

BORIC

This aromatic waxy compound from a namesake tree is used in vapor rubs and mothballs.

CAMPHOR

This simple sugar compound is naturally abundant in fruit and honey.

FRUCTOSE

NaCl seasons food and was so prized in the ancient world that it was widely traded like money.

SALT

Spinach and rhubarb leaves contain natural amounts of _ _ _ _ _ _ acid.

OXALIC

This carbohydrate compound, stored in potatoes and grains, is a major energy source for plants.

STARCH

Sucrose (C12H22O11) is the scientific name for this sweet crystalline carbohydrate.

SUGAR

Calcium carbonate (CaCO3) is the soft mineral compound used in classroom writing sticks.

CHALK

A buildup of _ _ _ _ acid in the joints is the underlying cause of gout.

URIC

This waxy hydrocarbon compound is commonly molded into candles.

PARAFFIN

This bitter plant compound gives red wine and strong tea their dry, puckering taste.

TANNIN

This orange pigment compound gives carrots their color and converts to vitamin A.

CAROTENE

Magnesium silicate is the softest mineral on the Mohs scale and is ground up for baby powder.

TALC

This ion, CO3 2-, is found in chalk, limestone, and antacid tablets.

CARBONATE

This protein compound found in wheat gives bread dough its stretchy texture.

GLUTEN

This neurotransmitter compound plays a central role in the brain's reward and pleasure system.

DOPAMINE

First produced in 1935, this synthetic polymer revolutionized stockings and climbing rope.

NYLON

This lead sulfide mineral was historically used as the detector crystal in early radios.

GALENA

This organic compound is the primary flavor component of real vanilla extract.

VANILLIN

Ethylene _ _ _ _ _ _ is the compound used as engine antifreeze and in some skincare products.

GLYCOL

This solvent compound is the main ingredient in nail polish remover.

ACETONE

A key acid in grapes and wine, it can crystallize into the gritty deposits called wine diamonds: _ _ _ _ _ _ _ _ acid.

TARTARIC

This synthetic plastic polymer, abbreviated from polyvinyl chloride, is used in pipes and vinyl records.

PVC

Calcium sulfate is a soft mineral used to make plaster and drywall, known as _ _ _ _ _ _.

GYPSUM

The NH4+ ion, common in fertilizer compounds like nitrate and sulfate salts, is known as the _ _ _ _ _ _ _ _ ion.

AMMONIUM

This colorless, odorless, toxic gas, carbon _ _ _ _ _ _ _ _, forms from incomplete fuel combustion.

MONOXIDE

This extremely hard, sparkling form of pure carbon is prized as a gemstone.

DIAMOND

This protein compound makes up roughly 80 percent of the protein in cow's milk.

CASEIN

Made by boiling animal collagen, this protein compound gives gummy candies their chewy texture.

GELATIN

This reddish-brown compound, Fe2O3, forms when iron reacts with oxygen and moisture.

RUST

This reddish iron oxide mineral, a major iron ore, gets its name from the Greek word for blood.

HEMATITE

This ion, SO4 2-, appears in compounds like gypsum and Epsom salts.

SULFATE

The tart acid found naturally in apples is called _ _ _ _ _ acid.

MALIC

This structural protein compound is the most abundant protein in the human body.

COLLAGEN

This refined petroleum product compound is used to fuel jet engines and old-fashioned lamps.

KEROSENE

This reddish-brown ore is the primary source of aluminum metal.

BAUXITE

This sodium borate compound is a classic ingredient in laundry boosters and homemade slime.

BORAX

This stimulant compound is naturally found in coffee beans and tea leaves.

CAFFEINE

This addictive compound is found naturally in tobacco plant leaves.

NICOTINE

Leafy greens and fortified grains are rich in _ _ _ _ _ acid, a B vitamin also called folate.

FOLIC

This sugar compound found in milk can be difficult for some adults to digest.

LACTOSE

H2O is the chemical formula for this life-sustaining liquid that covers most of Earth's surface.

WATER

The acid that gives vinegar its sour bite is called _ _ _ _ _ _ acid.

ACETIC

C2H5OH is the type of alcohol found in beer, wine, and spirits.

ETHANOL

This slick synthetic polymer coats non-stick frying pans.

TEFLON

SiO2 is the main compound found in beach sand and is melted down to make glass.

SILICA

This hormone compound, released in darkness, helps regulate the sleep-wake cycle.

MELATONIN

Pool suppliers commonly sell hydrochloric acid under the older name _ _ _ _ _ _ _ _ acid.

MURIATIC

This plant-derived compound helps fruit jams and jellies thicken and set.

PECTIN

H2O2 is a common antiseptic that fizzes on contact with a scraped knee.

PEROXIDE

A general term for potassium-rich minerals used in fertilizer, this substance was historically made by leaching wood ashes.

POTASH

This soft, slippery form of pure carbon is used as the 'lead' inside a pencil.

GRAPHITE

Calcium oxide (CaO) is a caustic industrial compound used in cement-making and old stage lighting.

QUICKLIME

This flammable hydrocarbon gas, C3H8, fuels many outdoor grills.

PROPANE

Sodium bicarbonate, NaHCO3, is a kitchen staple commonly known as baking _ _ _ _.

SODA

Once called aqua fortis, this acid, HNO3, is used in fertilizers and explosives and is called _ _ _ _ _ _ acid.

NITRIC

Plants absorb this gas, carbon _ _ _ _ _ _ _, during photosynthesis and release oxygen.

DIOXIDE

NH3 is a pungent gas widely used in cleaning products and nitrogen fertilizers.

AMMONIA

The acid found naturally in lemons and oranges is called _ _ _ _ _ _ acid.

CITRIC

This naturally magnetic iron oxide mineral was used to make early compasses.

MAGNETITE

This fibrous protein compound makes up hair, nails, and the outer layer of skin.

KERATIN

The iron-rich, oxygen-carrying protein in red blood cells gets half its name from a protein piece called _ _ _ _ _ _.

GLOBIN

The acid that builds up in muscles during hard exercise, and sours milk, is called _ _ _ _ _ _ acid.

LACTIC

This tough compound forms the exoskeletons of insects and crustaceans.

CHITIN

Potassium nitrate, once a key ingredient in gunpowder and cured meats, was historically called _ _ _ _ _ _ _ _ _.

SALTPETER

This compound gives chili peppers their spicy heat.

CAPSAICIN

Vitamin C is more formally known as _ _ _ _ _ _ _ _ acid.

ASCORBIC

This complex carbohydrate compound forms the rigid cell walls of plants.

CELLULOSE

This naturally occurring fossil-fuel compound mixture is refined into gasoline and diesel.

PETROLEUM

This hydrocarbon gas, C4H10, is commonly used in disposable lighters.

BUTANE

This neurotransmitter compound is often nicknamed the body's 'feel-good' chemical.

SEROTONIN

A dilute solution of acetic acid gives this sour condiment its sharp tang.

VINEGAR

First synthesized in 1863, this pale-yellow explosive compound's initials stand for trinitrotoluene.

TNT

This ion, NO3-, is a key component of many fertilizers and cured-meat preservatives.

NITRATE

The acid found in car batteries, H2SO4, is known as _ _ _ _ _ _ _ _ acid.

SULFURIC

This sticky petroleum-based compound is used to pave roads.

ASPHALT

This pigment compound gives human skin, hair, and eyes their color.

MELANIN

CH4 is the primary component of the natural gas piped into many homes.

METHANE

The mild acid that gives carbonated soda water its fizz is called _ _ _ _ _ _ _ _ acid.

CARBONIC

This ion, PO4 3-, is a key component of DNA, bones, and many fertilizers.

PHOSPHATE

This organic compound gives mint leaves and cough drops their cooling sensation.

MENTHOL

This crystalline form of silicon dioxide is common in jewelry and clock oscillators.

QUARTZ

C6H12O6 is a simple sugar that serves as the body's primary energy source.

GLUCOSE

This ion, often added to drinking water and toothpaste, helps prevent tooth decay.

FLUORIDE

Magnesium sulfate crystals, dissolved in warm baths to soothe sore muscles, are called _ _ _ _ _ salts.

EPSOM

Formed from limestone under heat and pressure, this calcium carbonate rock is prized for sculpture.

MARBLE

This ion, OH-, combines with sodium to form a strong base used in soap-making.

HYDROXIDE

This sedimentary rock, mostly calcium carbonate, is a key ingredient in cement.

LIMESTONE

This hormone compound, also called epinephrine, triggers the body's fight-or-flight response.

ADRENALIN

This lightweight foamed polystyrene material is used in disposable cups and packing peanuts.

STYROFOAM

This chemical signal compound is released by animals to influence the behavior of others of their species.

PHEROMONE

This enzyme, traditionally taken from calf stomachs, curdles milk to make cheese.

RENNET

This bright red mercury sulfide mineral was historically ground up as a pigment.

CINNABAR
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