Question

which sentence states a fact? crystals take about a week to form from a solution of water and sugar. by fifth grade, students should know enough about chemistry to explain how sugar crystals form.

Explanation:

A fact is a statement that can be proven. The first sentence about crystals taking about a week to form from a water - sugar solution can be verified through experimentation. The second sentence is a subjective opinion about what students should know.

Answer:

Crystals take about a week to form from a solution of water and sugar.