| A | B |
|---|
| Newcomen, Thomas | 1663-1729) Developed a steam engine powered by coal. |
| nuclear weapons | Weapons in which the explosive potential is controlled by nuclear fission or fusion. |
| Pahlavi, Muhammad Reza | (1919-1980), Dictator ruler of Iran from 1941 to 1979. He was supported by the United States throughout most of the Cold War due to his anti communist stance. Overthrown during the Iranian Revolution in 1979. |
| Pantheon | A domed temple in Rome that was completed in 27 BCE, and still stands today. |
| Parthenon | A large temple dedicated to the goddess Athena on the Acropolis in Athens, Greece. It was built in the 5th century BCE, during the Athenian golden age. |
| Pasteur, Louis | (1822-1895) French scientist who discovered the link between germs and disease. He also showed that killing germs, often prevented the spread of certain diseases. |
| pesticides | Chemicals used to destroy insects and other pests. |
| pictographs | Writing system that uses drawings of objects |
| power loom | A device that combined thread to make cloth using steam power. |
| Renaissance | A rebirth of cultural and intellectual pursuits after the stagnation of the Middle Ages. This period in European history, from about the 14th through 16th centuries, features major cultural and artistic change. |
| revolution | a dramatic change in ideas, practice, or government. |
| sanitation | Services including the collection and disposal of sewage and garbage. |
| satellite | Man made objects that orbit the Earth or perform deep space probes. The perform a number of functions such as communications and weather. |
| scholar | A person who posesses a great deal of knowledge, usually an academic who specializes in a particular subject area. |
| Scientific Method | Uses observation and experimentation to explain theories on the workings of the universe. |
| Scientific Revolution | An offshoot of the Renaissance in which scientists questioned traditional beliefs about the workings of the universe. One of the main ideas to come out of the Scientific Revolution was the use of the Scientific Method. The Scientific Method uses observation and experimentation to explain theories on how the universe works. |
| sculptor | An artist who creates three-dimensional works of art, usually in stone or clay. |
| seed drill | Machine designed by Jethro Tull which mechanically planted seeds. |
| Sistine Chapel | A Catholic church in Vatican City, Italy. Its ceiling was painted by the Renaissance artist Michelangelo. |
| smallpox | A highly contagious disease. Symptoms include high fever and scar-producing blisters. It can be fatal. |
