Across
- 5. the study of ideas about knowledge, truth, the nature and meaning of life: your personal beliefs or opinion related to life
- 7. a wealthy person who gives money and time to help make life better for other people
- 8. a science that deals with things that are alive, such as plants and animals; the study of life
- 9. the story of a real person's life written by someone other than that person
Down
- 1. capable of being slowly destroyed and broken down into very small parts by natural processes, bacteria, etc
- 2. a US city founded by William Penn, a Quaker who believed in peace
- 3. a person who loves or collects books
- 4. the process by which a green plan turns water and carbon dioxide into food when the plan is exposed to light
- 6. the art, process, or job of taking pictures with a camera; named after the original process that used light to expose an image on special paper
- 7. a tiny particle of light or electromagnetic radiation