Class 7 Science: Chapter Heat - Important Points To Remember
① Heat is a form of energy. We use this energy to generate electricity, among other things.
② The hotness or coldness of a body is relative.
③ The temperature of a body is a measure of the degree of hotness of the body. We measure it by comparing it with a universal standard.
④ The Celsius and Fahrenheit scales are commonly used to measure temperature. Ice melts at 0°C or 32°F. and water boils at 100°C or 212°F.