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im doing it for my science fair project, but their not growing.??

2007-03-28 16:11:12 · 4 answers · asked by Anonymous in Environment

4 answers

Make a salt/water solution and place it in a pitri(sp?) dish, and let dry by a window until the water evaporates and you are left with the salt crystals.

2007-03-28 16:16:44 · answer #1 · answered by shantia_schwack 3 · 0 0

You should use very warm water to dissolve the salt. Keep adding it until no more will dissolve. Then add it to the dish or even a jar will do. More water need to evaporate so it will take a while unless you seed it with a salt grain. The hard part is supersaturating the solution. You have to stir if for several minutes. Keep adding salt until it some is left and poor off the water into the holding jar and leave any salt that didn't dissolve in the stirring dish.

2007-03-28 23:21:34 · answer #2 · answered by bravozulu 7 · 0 0

heat the water, stir and dissolve as much salt as will continue to vanish. Pour the salt water into a glass, tie a string to the middle of a pencil and let it dangle into the saltwater. As the water cools, over a few days, the salt crystals should attach to the string. You can do the same thing with sugar, nummy and fun!

2007-03-28 23:22:25 · answer #3 · answered by sparkletina 6 · 0 0

make a supersaturated salt solution...dissolve much salt as you can in water...dissolve more than the maximum quantity of solute in a solvent...meaning more salt than water...then leave it for days...put a string and later on, days later, salt crystals will form on the string

2007-03-29 00:36:07 · answer #4 · answered by tayki_hanson 2 · 0 0

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