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.
The great pyramid of ToninÃ¡ in the Mexican state of Chiapas is the tallest pre-Colombian structure that has survived to date. At 75 meters, it is taller than Teotihuacanâs pyramid of the Sun. In fact, itâs been considered one of the largest in all of Mesoamerica, competing only with Tikal and El Mirador in Guatemala.