They did not, at least no more then any other ancient culture; if there is a strong influence between Egyptian myth and the stars, it is more then likely a modern interpretation.
Egyptians used stories to about their gods to explain acts of nature
Egyptians had many gods eg. Isis, Hathor, Osiris, Anubis etc.
Telling time. Day time sunrise = morning, sunset =evening, Nighttime =stars. The Ancient Egyptians used Star risings to segment the year. Later the Egyptians used Astronomy for Agriculture seasons. Egyptians used the precession of the equinox to represent Ages:Gemini,Taurus, Aries, Pisces, etc.
Pyramids were used as tombs for the pharaohs and they were thought of as the gods' staircase to the heavens.
Yes, they did. A common misconception is that their science was mostly about mummification, but they understood math, engineering, astronomy, and a lot more.
The ancient Egyptians believed in many gods and goddesses. They believed that each god or goddess controlled an aspect of life such as the Nile the sun death fertility and so on. To show their respect and reverence for these gods and goddesses the Egyptians would offer gifts prayers and sacrifices. This was their way of worshiping the gods. Egyptians also built temples to honor their gods and goddesses. Inside the temples priests would perform rituals and ceremonies to honor the gods. The most popular of these ceremonies were the Mysteries of Osiris and the Festival of Opet. During these ceremonies Egyptians would parade statues of gods and goddesses and make offerings to them. In addition to temples Egyptians also built shrines to their gods and goddesses. These shrines were usually located in public areas and were often decorated with symbols of the gods. Egyptians would visit the shrines to make offerings and pray to the gods. They believed that the gods would answer their prayers if they gave offerings and showed respect. Egyptians also believed in the power of magic and spells. They would use magic spells to ask for protection blessings or other favors from the gods. They also used spells to protect themselves and ward off evil. Finally the ancient Egyptians believed in the afterlife. They believed that when a person died their soul would travel to the underworld and be judged by the gods. If the gods were pleased with the person they would allow them to enter the afterlife. This was a source of hope and comfort to the ancient Egyptians and they believed that the gods would reward them for their piety and worship.
usually ancient Egyptians used statues and sculptures to display, or to sell. they might sculpt pots, and you know what pots are for, and they might make sculptures of their gods to pray to.
As in most early cultures, the patterns and behaviors of the sky led to the creation of a number of myths to explain the astronomical phenomena. For the Egyptians, the practice of astronomy went beyond legend: huge temples and pyramids were built to have a certain astronomical orientation. Although many of the religious aspects of Egyptian life were known for centuries, it was not until recently that a number of astronomers attempted to find out how important astronomy really was in ancient Egypt. -J. Norman Lockyer, The Dawn of Astronomy, MIT Press, 1894.-
Egyptians still use hieroglypics
The same way all ancient people used it: they made up fanciful stories about giant birds eating the sun to explain sunset and gods having chariot races to explain thunder. EDIT: The ancient Egyptians used religion to understand nature with their gods. For example: Anubis was the jackal the Egyptians thought that the jackal was an animal that controlled death(as the Anubis mask was worn in mummification), and made it the god of death. EDIT2: Above that ancient egyptians related volcanoes , earthquakes and other natural disasters to religious figures as a rage of one of their religious gods.
You use scientific notation in astronomy to compute very large or very small numbers.
Polytheism is the belief in or worship of multiple gods. An example sentence would be: "The ancient Greeks practiced polytheism, believing in a pantheon of gods and goddesses such as Zeus, Athena, and Aphrodite."