1. A filter was used to separate the sand from the salt water solution (The process of decanting was used if a filer was not available).
2. A Bunsen burner was used to boil away the water from the salt water solution leaving only salt.
I hope this helps. Let me know if anything is unclear.
Personal experience from Ag Mech classes-Concrete cools faster than metal.
Board up your windows
Go to higher ground
Get food and water
It is an open circuit because the metal does not complete the electric flow
