They are large, gray, and wrinkly. And when they do brush their teeth â well, those are 9 pound molars they have to deal with. Now that we have your elephant yearnings out of the way, letâs make some elephant toothpaste and help those guys out. So go call your friends on the elephone and get them ready, this experiment is going to elephantastic fun (groan). 1  Place the plastic bottle in the center of the cake pan.
The biggest pyramid in the world is the Great Pyramid of Giza. Archeologists believe that it was built for Fourth Dynasty Egyptian Pharaoh Khufu and was completed in 2560 BC.
8 Largest Pyramids in the World. Modern and ancient pyramids come in many forms and sizes. To determine which is the largest pyramid one could compare their heights for example. At a height of 260 meters (853 feet), the Transamerica Pyramid would certainly be a serious candidate. Many big pyramids however come with a very large base but are not very tall. A better measure of size therefore is probably the volume of a pyramid. The volume of a pyramid can be calculated by the following formula: Length_of_base * Width_of_base * Height * 1/3.