frumeind (atom)

sameind (molecule)

frumefni (element)

Efnasamband (compound)

viðbragð (reaction)

efnafræðilegur (chemical)

Lotukerfið (periodic table)

lausn (solution)

sýra (acid)

Basisk efni (base)

sýrustig (pH)

gas (gas)

vökvi (liquid)

fast efni (solid)

blanda (mix)

leysa upp (dissolve)

eðlisstyrkur (concentration)

massi (mass)

rúmmál (volume)

eðlismassi (density)

hitastig (temperature)

tilraun (experiment)

rannsóknarstofa (laboratory)

Reagensglas (test tube)

Mæliglas (beaker)

kolba (flask)

jafnvægi (balance)

mæla (measure)

Öryggisgleraugu (safety goggles)

Verndarhanskar (protective gloves)

upphitun (heating)

kæling (cooling)

eiginleikar (properties)

tengi (bond)

jóna- (ionic)

samgilt (covalent)

málmur (metal)

ómetal (nonmetal)

Viðbragðsgeta (reactivity)

Rafeindir á ysta hvolfi (valence electrons)

ísótóp (isotope)

Geislavirkni (radioactivity)

Útfelling (precipitate)

hvati (catalyst)

ensím (enzyme)

kenning (theory)

tilgáta (hypothesis)

Niðurstaða (conclusion)

athugun (observation)