Science, lesson 1

4. the act, or habit, of seeing and recording
5. the force with which a body is attracted by gravity
8. space occupied, as measured in three dimensions
10. the power or act of feeling or perceiving; the five senses are sight, hearing, touch, taste, and smell
11. systematic arrangement into groups and subdivisions

1. a general idea, statement, rule, or principle
2. a person who has expert knowledge of some branch of science
3. an instrument with lenses for making small objects look larger
6. information that tends to verify or draw a conclusion
7. a letter or sequence of letters at the beginning of a word serving to alter the word's meaning
9. measure of the quantity of matter a body contains, independent of gravity
12. knowledge based on observed facts and tested truths arranged in an orderly system