Pyramids were built in Ancient Egypt as tombs, or burial places, for Egyptian pharaohs, or kings. They believed that the pyramids made you immortal. The Ancient Egyptians believed in an afterlife, so it was very important to them to protect the bodies of their pharaohs.
CaCO3, or calcium carbonate, has a molar mass of 100.09 grams per mole. This means there are roughly 566 grams of CaCO3.
One 1/4 -ounce (7g) packet of active dry yeast contains approximately 2-1/4 teaspoons; the measurement will not be exact as yeast is packaged according to weight rather than volume. One 1/4-ounce (7g) packet of yeast is sufficient to raise 4 cups, approximately 1-pound, of flour.