When an ice cube in a glass of water melts, the water level will ...

[Kikoku]

When an ice cube in a glass of water melts, the water level will
 
  1) rise.
  2) fall.
  3) remain the same.
 
  If the floating ice cube contains a chunk of iron, during melting the water level will
  4) rise.
  5) fall.
  6) remain the same.

Question 2

A floating object displaces its own
 
  1) volume,
  2) weight,
  3) density,
 
  and a submerged object displaces its own
  4) volume.
  5) weight.
  6) density.

[Expo]

Answer to Question 1

Answer: 3, 5

Answer to Question 2

Answer: 2, 4