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.
Apply Now. The pyramid of Khufu at Giza, Egypt, is the world's tallest. Also known as the Great Pyramid, it was 146.7 m (481 ft 3 in) high when completed around 4,500 years ago, but erosion and vandalism have reduced its height to 137.5 m (451 ft 1 in) high today. Khufu is also known as Cheops in Greek.