Question

which statement explains why sugar dissolves easily in water, but sand does not?
○ sugar has a greater buoyant force than sand.
○ sugar has a greater conductivity than sand.
○ sugar has a greater hardness than sand.
○ sugar has a greater solubility than sand.

Explanation:

• Buoyant force relates to floating, not dissolving, so the first option is incorrect.
• Conductivity is about electrical or thermal transfer, not dissolution, so the second option is wrong.
• Hardness refers to resistance to scratching, not dissolving ability, so the third option is incorrect.
• Solubility is the ability of a substance to dissolve in a solvent (like water). Sugar has higher solubility in water than sand, which explains why sugar dissolves easily and sand does not.

Answer:

D. Sugar has a greater solubility than sand.