alchemy

backlit

brightcolor

brightlylit

britishcurrency

britishpound

bubble

bunsenburner

burning

change

chemical

chemicalreaction

chemistry

closeup

coin

colorimage

concept

currency

digitalcomposite

digitalenhancement

digitallygenerated

discovery

drop

expense

finance

flame

flask

floating

illustration

inarow

indoors

innovation

laboratory

liquid

makingmoney

money

motion

multicolored

nobody

onepoundcoin

photography

poundsign

research

science

scienceexperiment

steam

stopcock

symbol

testtube

tubing

variation

vertical