Answer:
A Floating object is less dense and therefore reaches the top of the water causing it to float.
A sinking object is heavier which means it is dense and therefore it will sink to the bottom.
Explanation:
If you compare a rock and an ice cube:
They are both solids, the rock will sink because it has a heavier mass than ice (more dense). The ice cube will float because it is lighter and will sit on the surface tension of the water (less dense).
