Transfering data

Hello,
I only know basic formulas for Excel so I am looking for someone to help me that can use simple "beginner" terms. I want to have 1 worksheet that contains data, when information is put into a specific cell in that row I then want that entire row to convert over to the first empty cell available on sheet 2. On sheet 2 I then want to know how to do something similar, I want to put a date in a certain cell, the formula recognize that date as a date on sheet 3 and move that entire row of data to the first available cell under that "date". Can someone help me. Thanks