Do you know why objects float or why objects sink? I am going to explain three reasons what floating means
Floating:Floating is when an object is floating above the surface.If an object gets put in the liquid and it floats the liquid goes to the sides and it displaces the water. Floating is buoyancy.It means its has the ability to float and stay above the surface.Some objects float because it has air in it.
Sinking:Sinking means is an object is under the surface that is solid or heavy like a rock.If you put a rock into a bottle of liquid it pushes the rock downwards so it will not come up again.Gravity is the force that pulls objects downwards towards the centre of the earth.