| A | B |
|---|
| genetics | study of the ways in which inborn characteristics of plants and animals are inherited |
| radioactivity | process of atoms of uranium and radium constantly disintegrating and releasing energy on their own |
| phsycial sciences | science that deals with the inanimate or nonliving aspects of nature |
| biological sciences | science that deals with living organisms |
| pasteurization | process of heating liquids to kill bacteria and prevent fermentation |
| romanticism | quality characteristic of the romantic movement |
| impressionist | one group of French painters who drew vivid drawings of people and places as they might appear in a brief glance |
| evolution | belief that plants and animals developed from common ancestors longago |
| social Darwinism | stated that society, like plant and animal worlds, has evolved from lower to higher forms through natural selection |
| psychoanalysis | process of revealing and analyzing the unconscious |
| emigration | movement of people to other lands |
| quantum theory | Planck's theory that energy can only be released in definite packages |
| special theory of relativity | Einstein's theory that no particle of matter can move faster than the speed of light and that motion can be measured only relative to some particular observer |
| regionalism | portrayal of everyday life in different parts of a large country |
| naturalist | person who writes of the realities in life, carefully screening emotion and opinion |
