EVERYDAY SCIENCE

Detailed explanation-1: -A standard quantity used to express a physical quantity is known as a measuring unit. For example, we use inches, i.e., “in” to measure the length of small objects like pencil, pen or matchstick.

Detailed explanation-2: -This known quantity is called unit. The result of a measurement is expressed in two parts; one part is a number and the other part is the unit of the measurement.

Detailed explanation-3: -Since the metric system is almost universally used, it is often referred to as the International System of Units and abbreviated SI. The basic units for length or distance measurements in the English system are the inch, foot, yard, and mile. Other units of length also include the rod, furlong, and chain.

Detailed explanation-4: -For example, the volume of a bowl is the amount of space inside the bowl or how much water, for example it would take to fill the bowl. In the metric system of measurement, the most common units of volume are milliliters and liters.