| A | B |
|---|
| Biology | a science that deals with things that are alive |
| biodegradable | capable of being slowly destroyed and broken down into very small parts by natural processes |
| biography | the story of a person's life written by someone other than that person |
| photography | the art, process, or job of taking pictures with a camera |
| photosynthesis | the process by which a green plant turns water and carbon dioxide into food when exposed to light |
| photon | a tiny particle of light |
| Philadelphia | "the city of brotherly love" |
| philanthropist | a wealthy person who gives money and time to help make life better |
| philosophy | the study of ideas about knowledge, truth, the nature and meaning of life |
| bibliophile | a book lover |
| biosphere | the part of the earth's crust, waters, and atmosphere that supports life |
| biorhythm | the periods in an organism's physiological processes, as sleep and wake cycles |
| photogenic | forming an attractive subject for photography or having features that look good in a photograph |
| philharmonic | fond or devoted to music; music-loving |
| philanderer | a man who flirts with many women |
