Which metal floats on water ?

Why do some objects float on the water ? And some sink (AS_(1))

How can you find the relative density of a liquid ? (AS_(1))

How can you appreciate the technology of making ships those float on water using the material which sink in water ? (AS_(6))

How would you confirm that a colourless liquid given to you is pure water? (AS_(1))

A man is sitting in a boat floating in water of a pond. There are heavy stones placed in the boat.

A Voltage (ship) made from steel float in sea water but a small pin a steel sinks in sea water.

How do you measure instantaneous speed? (AS_(1))

Which of the renewable sources of energy would you think suitable to produced in you native place. Why ? (AS_(7))

A piece of iron when placed on a block of wood, this makes the wood to float lower in the water. If the iron piece is suspended beneath the wood block, would it float at the same depth? Or lower or higher? You know that pressure difference at different levels inside the liquid causes buoyancy.