| A | B |
|---|
| microscope | an optical instrument consisting of a lens or combination of lenses for magnifying things that are invisible or indistinct to the naked eye |
| microchip | a chip containing thousands of integrated circuits |
| microwave | an electromagnetic radio wave having very a short wavelength |
| ecology | a branch of biology that deals with organisms in relation to their enviornment and to one another |
| biology | the scientific study of living organisms, including their origins, structures,activities, and distribution |
| mythology | group of myths relating to a particular country or person |
| technology | the use of scientific knowledge to control physical objects and forces |
| astronaut | pilot or member of the crew of a spacecraft |
| astronomy | science that deals with the constitution, motions, relative positions, sizes, etc., of the sun, moon, planets, stars, and all other heavenly bodies, as well as with the earth in its realtion to them |
| disaster | event that causes much suffering or loss |
| microcosm | community regarded as an epitome of the world; a little world |
| microbe | germ; microrganism; bacterium |
| microfilm | film for making very small photographs of pages of a book, newspapers, records, etc., to preserve them in a very small space |
| sociology | study of nature, origin, and development of human society and community life |
| geology | science that deals with composition of the crust of the earth or of other solid heavenly bodies, the layers of which they are composed, and their history |
| etymology | explanation and history of a word |
| astrology | study of the stras to foretell what will happen |
| astronomer | an expert in astronomy |
| asteroid | any of numerous minor plantes which revolve about the sun, between the orbits of Mars and Jupiter |
| asterisk | a star-shaped mark used in printing and writing to call attention to a footnote, indicate the omission of words or letters |
