A Student Is Preparing a Sugar-Water Solution to Make Rock

question 155

Multiple Choice

A student is preparing a sugar-water solution to make rock candy. When the student continues to add sugar to the solution, no additional sugar dissolves. Which kind of solution is the student preparing?

• A) The student is preparing a saturated solution.
• B) The student is preparing a supersaturated solution.
• C) The student is preparing an unsaturated solution.
• D) We cannot tell if the student is preparing a saturated, a supersaturated, or an unsaturated solution.

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Definitions:

Physiological Needs

The basic, fundamental needs of humans necessary for survival, such as food, water, shelter, and sleep, as described by Maslow's hierarchy of needs.

Maslow's Hierarchy

A theory in psychology proposed by Abraham Maslow, suggesting that people are motivated by a hierarchy of needs starting from basic physiological needs to self-actualization.

Ventromedial Hypothalamus

A region of the hypothalamus in the brain that regulates hunger, satiety, and other functions related to feeding behavior.

Lateral Hypothalamus

An area of the brain involved in the regulation of hunger and thirst; stimulation of this area promotes eating, while lesion or damage can reduce eating and lead to anorexia.