As shown in the picture, the more heat an object has the more movement the atoms have. Absolute zero is 273 o below the freezing point of water on the Celsius scale. This includes grams for smaller masses, and milligrams for even smaller masses. A paper clip has a mass of about 1 gram and a nickel has a mass of about 5 grams. Zero Kelvin is the same as absolute zero.
Temperature is a property of matter that can be measured using a thermometer.
Kilo- means 1000. The arrow heads shown are about 3 centimeters. The factor must be 1 or greater but less than 10. Estimation saves time and is a valuable skill. Any value can be a standard as long as it is agreed upon.