What is Heat and what is Temperature
All atoms in universe are in motion; this motion can be in the form of vibration, such as a solid, or moving over long distances and colliding such as what occurs in gases. The greater the amount of motion in a substance, the higher the temperature. Temperature on earth is measure using three different scales. Kelvin, Fahrenheit and Celsius . Heat is a measure of the flow of kinetic energy from one material to another, or the total amount of kinetic energy in a system. All heat flows from substance with high kinetic energy, or a source, to substance with low kinetic energy, called a sink. Therefore the energy flow in a system moves from a source to a sink. We sense this change in kinetic energy as heat. Heat is measure by using the calorie, which is a unit that denotes the amount of energy it takes to raise the temperature of 1 gram of water 1 degree centigrade. The specific heat of a substance is a measure of how much heat is required to raise 1 gram of the substance to 1 degree centigrade. Specific heat is also called heat capacity. Liquid water has the highest specific heat of any natural substance on earth. The specific heat of water is 1 calorie per gram. Therefore water can hold much more heat energy than rock. The high heat capacity of water is an important property that helps the oceans regulates the climate of the Earth.