I WILL GIVE BRAINLIEST How could you explain that two objects of the same volume have different buoyancy in water?

Volumes can have the same volume but different masses if they have different densities. For example, a 10 x 10 x 10 block of lead has the same volume as a 10 x 10 x 10 block of pine wood, but the lead block weighs 22.6 times more than the pine block. Indeed, the density of lead is high enough that the lead block will sink in water, whereas the pine block's density is low enough that the pine block will float in water.

Volume is a measurement, the units are cubic metres or cubic centimetres. Litres = 1000 cm3

Mass is a measurement, the units are grams, kilograms.

to that answer.

Mass is not weight. it is the amount of matter an object takes up. Therefore, saying that a lead block weights 22.6 times more than the pine block does not answer how an object can have different masses but the same volume. :D

there are two significant figures.