You will be aggravated by the difficulty in getting good crystals to grow if you use table salt. If you can get hold of some alum or copper (II) sulfate, both of those salts grow crystals well.
do sugar crystals form on straws
yes
yes they are called sugar crystals
they are because the sugar crystals have syrup on them to make them sweet
Kill jhy
Adding methylene blue to sugar water solution.
Medium.Not hard or easy.
salt
yep, buy domino and you'll have no problem.
No. Sugar-free gum lasts longer because the sugar crystals don't break down as fast.
Big crystals are obtained by a very slow crystallization from very concentrated sugar solutions.
In semiprecious stones like rubies and emeralds the amount of chlorine colors them. When you make sugar crystals you can use food coloring.