Question

if you boil water with differnt amounts of salt in it what would be the control

Answer 1

http://www.swri.org/10light/water.htm

Answer 2

i know it boils faster i did the experiment but what it the control

Answer 3

Anything that isn't changed would be the control variable. For instance, the amount of water, the temperature at which you use to heat, the materials used.

Anything that changes (\(\sf \color{red}{in~this~case~;~the~salt~concentration}\)) would NOT be control.