Which substance will form a solution with water? (Select all that apply.)

The substances that will form a solution with water among the options provided are:

• Sugar: Sugar (sucrose) is soluble in water and will dissolve to form a solution.
• Salt: Salt (sodium chloride) is also soluble in water and will dissolve to form a solution.

The other options, string and sand, will not form a solution with water as they do not dissolve in it.