Scientist's rhymes with:
scientists, scientists', scientists, scientists', scientists, scientists', adventists, dentist's, dentists', scientists, scientists'
Scientist's sounds like:
scientists, scientists', syndicate's, syndicates, syndicats
scientists, scientists', scientists, scientists', scientists, scientists', adventists, dentist's, dentists', scientists, scientists'
scientists, scientists', syndicate's, syndicates, syndicats