posted by sciencefreak101 on .
explain how pouring water on a fire puts the fire out in more than 1 way
james accidentally spills 2 containers, mixing their contents. he checks and finds that one contains salt crystals while the other contains powered sand. Describe a method that he might use to separate the 2 mixtures without losing any of either mixture.
Fire needs fuel, temperature and oxygen. How do you think water effects these?
Will the crystals dissolve in water? After pouring the water with the crystals out, can you cause the water to evaporate?