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.
For example, if your teacher gives you a piece of string as a standard, you can measure objects in the classroom. For 0.0063, get the number 6.3. First, 6.3 divided by 10 yields 0.63. For 6300, get the number 6.3. First, 6.3 times 10 yields 63.