Spelling Crossword

4. pertaining to or involving atomic weapons
7. the totality of known or supposed objects and phenomena throughout space
10. an optical instrument having a magnifying lens or a combination of lenses for inspecting objects too small
11. the smallest physical unit of an element or compound, consisting of one or more like atoms in an element
13. a thing you do when you don't know the result e__e_ime_t
17. an optical instrument for making distant objects appear larger
18. the structure of an animal or plant or of any of its parts
19. to limit the availability of (information, a document, etc.) to authorized persons
20. the science of life or living matter in all its forms

1. a subject in school that involves experiments s_ie__e
2. the science that deals with the composition and properties of substances
3. e obscuration of the light of the moon by the intervention of the earth between it and the sun
5. the act of rotating; a turning around as on an axis
6. an expert in astronomy, a scientific observer of the celestial bodies.
8. something you invent
9. to search something up
12. a large system of stars held together by mutual gravitation and isolated from similar systems by vast regions of space.
14. the science that deals with matter, energy, motion, and force
15. an overthrow or repudiation and the thorough replacement of an established government or political system by the people governed.
16. a scientific or industrial process, invention, method, or the like