Michigan Test for Teacher Certification (MTTC) Secondary Integrated Science Practice test

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Who invented the first thermometer?

Galileo Galilei
Isaac Newton
Albert Einstein
Aristotle

The correct answer is: Galileo Galilei

The first thermometer was invented by Galileo Galilei in the early 17th century, around 1593. Galileo's initial design was known as a thermoscope, which was a rudimentary device that allowed for the indication of temperature changes through the movement of air and water. This early version of a thermometer operated based on the principle of thermal expansion; as the temperature increased, the air within the device expanded, causing water to rise in a tube, and vice versa. Galileo's work laid the foundation for the development of more sophisticated thermometers, and his contributions were significant in the field of thermometry. Other figures, such as Isaac Newton, made advances in various scientific fields but did not invent the first thermometer. Albert Einstein and Aristotle are not associated with the invention of temperature measurement devices. Thus, the choice of Galileo Galilei as the inventor is historically accurate and reflects his pioneering contributions to the understanding of temperature and thermometry.