<prompt> Bheka isigaba esingezansi bese uphendula umbuzo ngemuva kwalokho ngolimi olufanayo nesigaba: Isigaba: Umlando we-chemistry umele isikhathi esivela emlandweni wasendulo kuze kube manje. Ngo-1000 BC, impucuko yayisebenzisa ubuchwepheshe obuzogcina buyisisekelo samagatsha ahlukahlukene we-chemistry. Izibonelo zihlanganisa ukukhipha izinsimbi kusuka kumagugu, ukwenza izitsha zobumba kanye ne-glazes, ukuvutshelwa ubhiya newayini, ukukhipha amakhemikhali ezitshalweni zemithi namakha, ukuguqula amafutha abe ngensipho, ukwenza ingilazi, Umbuzo: Siyini isikhathi esiphelele se-Chemistry?  <response>: umlando wasendulo kuze kube namuhla 