Q.1. The amount of force acting on the unit area of a surface is called ? Q.2. Which scientist proved experimentally that heat is a form of energy ?
Q.3. What is the normal temperature of a human body ?
Q.4. Who developed the first thermometer ?

The force acting on a unit area of a surface is called pressure.James Prescott JouleThe average normal body temperature is generally accepted as 98.6°F (37°C). Some studies have shown that the "normal" body temperature can have a wide range, from 97°F (36.1°C) to 99°F (37.2°C)The more modern thermometer was invented in 1709 by Daniel Fahrenheit. It was an enclosed glass tube that had a numerical scale, called the Fahrenheit scale. The early version of this thermometer contained alcohol and in 1714 Fahrenheit developed a mercury thermometer using the same scale

Amethod of procedure that has characterized natural science since the 17th century, consisting in systematic observation, measurement, and experiment, and the formulation, testing, and modification of hypotheses.

Sorry i don’t know what to do