Science-U1,S1-Crossword

1. Passing from sight because light is cut off. In an eclipse of the sun, the moon is between the earth and the sun, cutting off light.
5. An instrument with lenses for making small objects look larger.
7. A person who has expert knowledge of some branch of science.
8. Force which tends to pull objects toward the center of the earth.
13. A change in which one substance is converted into one or more other substances with different properties.
14. The force with which a body is attracted by gravity.
15. Something that tends to prove.
17. A reasoning process by which one starts with a general principle that is accepted as true, applies it to a particular case, and arrives at a conclusion.

2. Systematic arrangement into groups.
3. A general idea, statement, rule, or principle.
4. The power or act of feeling or perceiving. Sight, hearing, touch, taste, and smell are the five senses.
6. The act, habit, or power of seeing and nothing.
9. Space occupied, as measured in three dimensions.
10. A reasoning process by which one collects many particular cases, finds out what is common, and forms a general rule that is taken to be true.
11. A syllable at the beginning of a word to alter its meaning.
12. Measure of the quantity of matter a body contains, independent of gravity.
16. Knowledge based on observed facts and tested truths arranged in an orderly system.