Question

the scientist said the earth moves round the earth change into voice

Answer 1

it was said by the scientist that the earth moves round the sun

Answer 2

okkee.... here is ur answer user...
passive voice - it was said by the scientist that the earth moves round the earth.

or if u r asking it to change in indirect voice..

indirect voice - the scientist explained that the earth moves round the earth .

HOPE THIS ANSWER HELPS....