How could you predict the sinking/floating behavior of a spherical object?

To predict the sinking/floating behavior of a spherical object, you could determine its density.

Step 1. Determine its mass on a suitable balance.

Step 2. Determine its volume

Either

Measure its circumference. C = 2πr, so you can calculate r

or

Measure its diameter. d = 2r, so you can calculate r

Then

V = ⁴/₃πr³ , so you can calculate its volume.

Step 3. Calculate its density (D).

Density = mass/volume

If D < 1 g/cm³, the object will float in water. If D > 1 g/cm³, the object will sink.

the answer is minerals.

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.