Science education DVD for elementary school students, teaching about the power of objects. - Title: I Understand! The Function of Force 1: Elementary School Science - Content: Learning about the falling of objects and buoyancy - DVD Condition: No noticeable scratches on the disc - Manufacturer: NIKK Eizo Co., Ltd. Thank you for viewing. I used to watch this while traveling in the car. It has cute visuals and I think it's a pretty good educational material. I watched it after ripping it, so the DVD has only been played a few times and is in good condition.