Floating bodies

At the end of this activity, students should be able to:
– state the conditions under which bodies can float in liquids and gases
– calculate the part of a homogenous body which is submerged below the surface of a liquid
– explain why bodies of a particular shape which are made of a substance with a greater density than a liquid, can still float in the liquid
– explain the difference in the movement of a ship on the surface and a submarine.