Pyramids were built in Ancient Egypt as tombs, or burial places, for Egyptian pharaohs, or kings. They believed that the pyramids made you immortal.
1 kilogram = 1,000 grams. A dictionary has a mass of about one kilogram. Kilograms are great for measuring things that can be lifted by people (sometimes very strong people are needed of course!). Kilograms are often written as kg (that is a k for kilo and a g for gram), so 10 kg means 10 kilograms. Scales measure our weight using kilograms. An adult weighs about 70 kg.
1 Pound = 453.59237 Grams. Pound is a unit of mass in imperial and U.S. customary systems. International avoirdupois pound is commonly used daily basis in united states, canada and britain and defined as 0.45359237 kilograms.