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 northernmost and oldest pyramid of the group was built for Khufu (Greek: Cheops), the second king of the 4th dynasty. Called the Great Pyramid, it is the largest of the three, the length of each side at the base averaging 755.75 feet (230 metres) and its original height being 481.4 feet (147 metres).