NaturaL compass

It's a natural compass and it serves to point norht.Material:Water,toper, cork,and one needle.Preparation:You hare to put water into the taper and ou have to rub needlewhith the kinfe.And put the corck to p water henputt to that point north. They utilizan the survivor to leave the island.Now we hare pictures below the compass.Thank you for you attention GOODBYE