List all items known to you that float on water. Check and see if they will float on oil or kerosene.
Some items that float on water are listed below:
i. Plastic ball
ii. Matchstick
iii. Feather
iv. Paper boat
v. Balloon
vi. Hair
vii. Termocole piece
viii. Cane
ix. Paper boat
x. Wood
They also float on oil or kerosene.