Across 2. an object, esp. metal, with a magnetic field that attracts iron and steel 4. to move s.t. across a surface 5. the smallest unit of matter, a nucleus surrounded by protons and electrons 7. ordered, precise (thought, methods, etc.) 8. a utensil with a wide opening on top leading into a narrow bottom and used to control the flow of a liquid 9. a test done to see if s.t. works or happens 12. air-like substance, which usu. cannot be seen, that is not a liquid or solid 14. to cut apart for analysis 16. a hollow cylinder made of glass or plastic used for experiments 21. a clear, glass container for liquids 23. a person who observes s.t. without participating, such as a spectator, official, etc 24. s.t. (usu. written) that proves that an event happened, including records of business transactions, scientific data, cultural, or other human activities 26. the group of sciences including physics, astronomy, and chemistry 27. a specially equipped room for doing experiments and other exploratory work 28. an instrument for weighing things

Down 1. (in medicine) an instrument used to hold firmly and pull, such as one occasionally used in childbirth 3. any of more than one hundred basic chemical substances 4. a person who works in science 6. the smallest unit of the elements of a substance 7. not liquid or gas 10. an examination, quiz to measure knowledge or ability 11. physical substance that has weight and takes up space 13. an optical instrument that uses lenses to make small objects appear larger 15. one of many areas of study, such as sociology, history, psychology, and economics, that examine people's relationships with each other and with the world 17. the science of the chemistry of living things 18. the science and study of life 19. viewing, watching 20. to view, watch, esp. for anything unusual 22. (in chemistry) a pot in which metals are melted 25. an effect, a consequence of an action

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