You fill 12 trays with water and find the total mass to be 500g. What is the quickest way to figure out the mass of the water in one of the trays? Freeze the ice trays and measure the mass of only one of the ice cubes in the ice tray.

Measure the total mass of the trays, subtract the mass of the trays without water and then divide that mass by 12.

Pour the water from one of the trays into a container and measure the mass of the container and the water.

Pour the water from all of the trays onto a scale to measure the mass.

i'm assuming that the correct answer is indeed the first one/ "a"..

explanation:

two years ago, when picking flowers in the mountains back of yosemite valley, i found a book. it was blotted and storm-beaten; all of its outer pages were mealy and crumbly. the paper seemed to dissolve like the snow beneath which it had been buried, however; many of the inner pages were well preserved. and although all were more or less stained and torn, whole chapters were easily readable. this is the condition of the great open book of yosemite glaciers today; its granite pages have been torn and blurred by the same storms that wasted the castaway book.

two years ago, when picking flowers in the mountains back of yosemite valley; i found a book. it was blotted and storm-beaten, all of its outer pages were mealy and crumbly. the paper seemed to dissolve like the snow beneath which it had been buried, however, many of the inner pages were well preserved. and although all were more or less stained and torn; whole chapters were easily readable. this is the condition of the great open book of yosemite glaciers today, its granite pages have been torn and blurred by the same storms that wasted the castaway book.

i think tornado but not 100%