Which of the Following Is $\underline{\text{ not }}$ A Mixture?
A) Ice Cream
B) Gasoline
C) Skim Milk

question 40

Multiple Choice

Which of the following is $\underline{\text{ not }}$ a mixture?

• A) ice cream
• B) gasoline
• C) skim milk
• D) strawberry jam
• E) baking soda (sodium bicarbonate)

---

Definitions:

Intelligence Quotient

A measure of a person's cognitive abilities and intellectual potential compared to a statistical norm, typically assessed by standardized tests.

William Stern

A psychologist best known for developing the concept of the intelligence quotient or IQ.

Mental Age

A measure of an individual's mental attainment based on the age in which it takes an average individual to reach that same level of attainment.

Alfred Binet

A French psychologist best known for developing the first standardized intelligence test, which laid the foundation for modern intelligence testing.