Science Memory Check Revised New Edition, First Printing: August 3, 2024 Published by NICHINOKEN Sold by Mikuni Publishing Since other materials were my main focus, I haven't used this much. I erased a few notes on the first page. Please see the third photo. There are no other notes on the other pages. There is a tear on the first page of the answer key. Please see the fourth photo. Since it's the first page, I've confirmed that the answers are not missing. All answers are visible. Please understand this before purchasing.