Question

how objects which naturally sink can be made to float in water?
I am stuck with this question, means i have my science project that's why i am asking this question. If anybody answers this he or she will get 10 points and my query will also get solved.
Please answer this question​

Answer 1

Explanation:

We can make a sinking object (or system containing more than one object or material) float by changing its shape to increase its volume (for example, by makng a shape that traps air and so lessens the overall density of the system). Usually, an object with air trapped inside it will float.