date:Aug 14, 2012
pendence on students as subjects, they added, adding that children would perhaps prefer smaller openings.
Drinking satisfaction was affected by opening diameter, material and shape of bottles, Chihara and Yamazaki said, adding that the latter two factors hardly changed due toease of recycling and the forming process,hence the cap diameter focus.
Thirst levels and beverage preference might also affect drinking satisfaction, the researchers wrote, before noting that these variables as well as t