Answer:
<h2>Heat a saturated sugar water solution, dissolve more sugar, then let the solution cool</h2>
Explanation:
To make rock candy, you first need to place the water in a pan and bring it to boil. At the beginning you make a sugar water solution by adding a bit of sugar, that will ensure that you have the right temperature (remember, the more sugar you add, the harder is to dissolve it).
After you do the first process, then you continue to add the rest of the sugar while you stir, when it's completely dissolved, you remove the pan from the heat, and let the solution cool.
Therefore, the right answer is the first choice, because describes best the process.
