Science·medium
Which metal is the best conductor of electricity?Silver✓ correct
Gold
Copper
Aluminum
fun factschemistrymetalselectricity
Science·hard
The smell of petrichor comes from a chemical called geosmin released by bacteria.fun factssmellrainchemistry
Science·medium
The human body contains enough iron to make a 3-inch nail.fun factshuman bodychemistryelements
Science·medium
Which metal is liquid at room temperature?Mercury✓ correct
Gallium
Cesium
Aluminum
fun factschemistryelements
Science·hard
Which element is named after a Norse god?Thorium✓ correct
Titanium
Mercury
Uranium
fun factschemistryelementsmythology
Science·hard
Glass is technically a liquid, not a solid.fun factschemistrymaterialsphysics
Science·hard
The smell of fresh-cut grass is actually a chemical distress signal released by the plant.fun factsplantschemistrybiology
Science·hard
Gold is magnetic.fun factsgoldchemistrymagnetism
Science·hard
What is the only letter that does not appear on the periodic table?fun factschemistryelementslanguage
Science·hard
What is the rarest naturally occurring element on Earth?Francium✓ correct
Gold
Platinum
Rhodium
fun factschemistryelementsperiodic table
Science·hard
Pearls dissolve in vinegar.fun factschemistrypearlsgems
Science·medium
What is the most abundant gas in Earth's atmosphere?Nitrogen✓ correct
Oxygen
Argon
Carbon dioxide
fun factsatmospherechemistryearth
Science·medium
Which element is liquid at room temperature?Mercury✓ correct
Gallium
Bromine
Cesium
fun factschemistryelementsperiodic table
Food & Drink·easy
Honey never spoils and can last indefinitely.fun factsfoodpreservationchemistry
Science·hard
Which element is liquid at room temperature besides mercury?Bromine✓ correct
Gallium
Iodine
Thorium
fun factschemistryelements
Food & Drink·medium
Baking soda and baking powder can be used interchangeably in recipes without any adjustments.recipesbakingleavening agentschemistry
Science·hard
What is the only letter that does not appear on the periodic table of elements?fun factschemistryperiodic table
Science·easy
What is the most abundant element in the universe?Hydrogen✓ correct
Helium
Oxygen
Carbon
fun factschemistryuniverse
Science·medium
Which compound gives citrus fruits their characteristic sour taste?Citric acid✓ correct
Acetic acid
Malic acid
Tartaric acid
fruitcitruschemistry
Science·medium
What is the only metal that is liquid at room temperature?Mercury✓ correct
Gallium
Francium
Cesium
general knowledgesciencechemistryelements
Science·easy
What is the chemical symbol for potassium?general knowledgechemistryperiodic tableelements
Science·medium
Which element is the most abundant in Earth's atmosphere?Nitrogen✓ correct
Oxygen
Argon
Carbon dioxide
general knowledgechemistryatmosphereelements
Science·easy
What is the freezing point of water in Celsius?general knowledgesciencetemperaturechemistry
Science·medium
What is the chemical formula for table salt?NaCl✓ correct
KCl
CaCl2
MgCl2
general knowledgechemistrycompoundsminerals
Science·medium
Which element has the chemical symbol 'Au'?Gold✓ correct
Silver
Aluminum
Argon
general knowledgechemistryelementsperiodic table
Science·hard
Which factor most significantly affects the explosive force of TNT?Density and crystal structure✓ correct
Color and texture
Temperature of storage
Age of the compound
explosiveschemistryproperties
Science·hard
Which explosive compound is known by the abbreviation PETN?Pentaerythritol tetranitrate✓ correct
Polyethylene Tetra-Nitrogen
Phenolic Explosive Tri-Nitrate
Perchlorate Ethyl Tertiary Nitride
explosiveschemistryabbreviations
History·medium
What is the main component of black powder?Saltpetre, charcoal, and sulfur✓ correct
Potassium chloride, coal, and phosphorus
Sodium nitrate, coke, and selenium
Calcium carbonate, peat, and arsenic
explosivesgunpowderchemistry
Science·medium
Which element is essential in most conventional explosives?Nitrogen✓ correct
Sulfur
Phosphorus
Chlorine
explosiveschemistryelements
Science·easy
What does TNT stand for?Trinitrotoluene✓ correct
Tertiary Nitrate Toluene
Toluene Nitrogen Trioxide
Tri-Nitro Toluate
explosiveschemistryabbreviations
Science·medium
What is the primary chemical compound in dynamite?Nitroglycerin✓ correct
Trinitrotoluene
Ammonium nitrate
Potassium perchlorate
explosiveschemistrydynamite
Science·hard
The compound capsaicin, which gives chili peppers their heat, serves what function in the plant?Deterrent against herbivores and fungi✓ correct
Attracts pollinators
Absorbs sunlight
Stores water
plantschemistrycapsaicinchili peppers
Science·hard
Which enzyme, found in pineapple plants, is commonly used in meat tenderizers?Bromelain✓ correct
Papain
Protease
Lipase
chemistryenzymesfoodplants
Science·easy
What is the primary pigment responsible for the green color in most plants?Chlorophyll✓ correct
Carotenoid
Anthocyanin
Xanthophyll
plantsphotosynthesischemistry
Food & Drink·easy
Which of these leavening agents requires heat to activate?Baking powder✓ correct
Baking soda alone
Fresh yeast
Whipped egg whites
bakingleavening agentschemistry
Science·medium
What happens chemically when you cream butter and sugar together in baking?Air is incorporated into the mixture, creating a lighter texture✓ correct
The sugar dissolves completely into the butter
The butter begins to emulsify with water
The mixture develops gluten networks
bakingchemistrymixing
Science·hard
Which ingredient is primarily responsible for the brown color and flavor development in baked goods?The Maillard reaction between amino acids and reducing sugars✓ correct
Caramelization of all sugars in the mixture
Oxidation of butter during heating
Fermentation of yeast cells
bakingchemistrybrowning
Food & Drink·medium
Which ingredient prevents gluten from overdeveloping in tender baked goods?Fat (butter or oil)✓ correct
Salt
Sugar
Baking powder
bakingfatglutenchemistry
Food & Drink·hard
What is the primary difference between baking powder and baking soda in terms of activation?Baking powder contains acid and releases CO2 when heated; baking soda needs an acidic ingredient✓ correct
Baking soda works faster than baking powder
Baking powder requires no liquid to activate
They function identically
bakingleavening agentschemistry
Food & Drink·easy
Which ingredient acts as both a binder and leavening agent in baked goods?Eggs✓ correct
Vanilla extract
Salt
Butter
cookingbakingingredientschemistry