There are 2 ACT science vocabularies: chemistry and Laboratory operation. Hopefully, they can help test takers to recall science words more easily and quickly.
ACT Chemistry Vocabulary
acid activated complex activation energy aggregate alkali metals alkaline earth metals alkane alkene alkyne allotropy alloy aluminum ammonia amorphous amphoteric anode anomalous aqueous argon Avogadro's law barium bauxite bleaching bond boron brass bromine buret calcium calory carbohydrate carbon dioxide carbon monoxide carbonate carboxylic acid catalyst cathode reaction cellulose chlorine chromium coefficient combination reaction combustion composition compound concentrated concentration condensation covalent bond cracking crude oil crystal deoxyribose diatomic molecule diffusion dilute displacement reaction distillation double bonds dynamic equilibrium electrolysis elcetrolyte electronic configuration element empirical formula endothermic enthalpy erosion ethanoic acid ethanol ethene evaporation exothermic extraction filtering flame test fluorine fractional distillation freezing point glucose glycogen graphite greenhouse effect Haber process halogen helium homologous series hydrocarbon hydrogen hydrogen chloride hydrogen peroxide hydronium ion hydroxide indicator iodine isomerism le Chatelier's principle lead limestone linear lipid lithium litmus magnesium metalloid methane methanoic acid methanol monomer neon neutralization nitrate nitric acid nitrogen noble gases oxide oxidation agent ozone periodic table permanganate petroleum phenolphthalein phosphorus planar platinum polar polymer potassium precipitation propane propanoic acid propanol propene pure substance reactive redox reducing agent reversible reaction shared paris of electrons silicon sodium solvent starch sublime sulphate sulphur sulphuric acid suspension tetrahedral titration torr triple bonds van der Waals' force volatile zinc
ACT Laboratory Vocabulary
additive adjust airtight apparatus assemble assign average molecular mass barrel beaker blend blender block brake bubble buffer solution bulb bullet calibrate can capillary casing chain chain reaction chamber clamp collision comparison compress concentration condense container controller crystal deposit desiccate detector detector detonation device dial dilute disk distill efficiency electronic balance emission exert external pressure fan fasten filament filter fit fixture flask formation fractionating gauge graduated cylinder hand hang heat exchanger heat insulated container heating block hinge holding device hook hose hygrometer imbed inclination incline incline plane index inject inlet insulate jar launcher lens lid lift magnitude manometer manually measuring stick melt off meter stick microscope molarity mount nonreactive odor optical bench oscillate oven parameter path peak pellet pendulum platform scale plunger pour powder precipitate probe procedure pulley pulse radar ramp ration reset rest retention time rod roll rope rotate saturate scale screw scrub seal secure sediment sensor settled shake sheet sieve slide slipping solar radiation spark specification spectrum speed up sphere spring spring scale spring system squeeze stablize standard sample stick stir stopper stopwatch stream stretch strip suspend synthesize syringe tabletop tailpipe tank telescope tension test tube thermometer titrant titration torsion transceiver trial trough tubing twist valve vapor pressure vessel weight wire wrap