Question

Mary saw a ship travelling on a sea. She knows that iron nail sinks in water. She has many doubts, what are her doubts? Write them.

Answer 1

Answer:

Her doubts will be

1. The nails are lighter than the ship .while the nails are sinking why is the ship not sinking.

Explanation:

The ships have hollow space at it's bottom which helps to balance them on water while the weight of the nails make them to sink

Answer 2

Answer:

Ur doubts can be that if an iron nail sinks why isn't the iron ship sinking.

Explanation:

Because the density of the iron ship is comparatively much less than that of the density of water where as the density of iron nail is more than water. That is why iron ship floats and iron nail sinks.