Across
- 2. an electrically charged atom or group of atoms formed by the loss or gain of one or more electrons
- 5. the act of classifying
- 9. the science or technique of classification
- 11. the symbol for the logarithm of the reciprocal of hydrogen ion concentration in gram atoms per liter, used to express the acidity or alkalinity of a solution on a scale of 0 to 14
- 12. a measure of how acidic or basic (alkaline) a liquid is
- 13. to derive by reasoning; conclude or judge from premises or evidence
- 14. the quality that constitutes an alkali
- 15. a proposition, or set of propositions, set forth as an explanation for the occurrence of some specified group of phenomena, either asserted merely as a provisional conjecture to guide investigation working
- 16. The quality or state of being acidic
- 19. a seeking or request for truth, information, or knowledge
- 20. capable of being varied or changed; alterable
- 24. a systematic approach to acquiring new knowledge through observation and experimentation
Down
- 1. the method of discovery used by scientists from the Enlightenment onward, in which a question is identified, data are gathered through observation and research, a hypothesis is formulated and then tested through experimentation, and the results are analyzed to draw a conclusion
- 3. exhibiting neither acid nor alkaline qualities
- 4. a key used to identify a plant or animal in which each stage presents descriptions of two distinguishing characters, with a direction to another stage in the key, until the species is identified
- 6. to arrange or organize by classes
- 7. to exercise restraint or direction over
- 8. containing the hydroxyl group
- 10. of or relating to the describing or measuring of quantity
- 11. an act of predicting
- 17. a graphic representation
- 18. pertaining to or concerned with quality
- 21. a compound usually having a sour taste and capable of neutralizing alkalis
- 22. a compound that reacts with an acid to form a salt, as ammonia
- 23. a diagram representing a system of connections or interrelations among two or more things by a number of distinctive dots, lines, bars