Across
- 2. Chemistry., a compound usually having a sour taste and capable of neutralizing alkalis and reddening blue litmus paper, containing hydrogen that can be replaced by a metal or an electropositive group to form a salt, or containing an atom that can accept a pair of electrons from a base. Acids are proton donors that yield hydronium ions in water solution, or electron-pair acceptors that combine with electron-pair donors or bases.
- 3. -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
- 4. a seeking or request for truth, information, or knowledge.
- 7. a logarithmic measure of how acidic or basic a solution is, ranging from 0 to 14
- 10. is the act of classifying.
- 11. a diagram representing a system of connections or interrelations among two or more things by a number of distinctive dots, lines, bars, etc.
- 15. an act of predicting.
- 17. not taking part or giving assistance in a dispute or war between others.
- 18. that is or may be estimated by quantity.
- 20. 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: usually followed, in the scientific community, by sharing the results so that others can attempt to replicate and confirm them independently.
- 22. a sheet exhibiting information in tabular form
- 23. to exercise restraint or direction over; dominate: command.
- 24. to arrange or organize by classes; order according to class.
- 25. the bottom support of anything; that on which a thing stands or rests.a metal base for the table.
Down
- 1. containing the hydroxyl group.
- 5. to derive by reasoning; conclude or judge from premises or evidence.
- 6. phase.
- 8. the quality or state of being acid.
- 9. pertaining to or concerned with quality or qualities.
- 12. 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 hypothesis or accepted as highly probable in the light of established facts.
- 13. a systematic way of investigating phenomena and acquiring knowledge, typically involving six steps: observation, asking a question, forming a hypothesis, conducting an experiment to test the hypothesis, analyzing the data, and drawing a conclusion
- 14. a suffix, appearing in words of Latin origin, denoting action or condition, used in Latin and in English to form nouns from stems of Latin adjectives
- 16. alkaline condition; the quality that constitutes an alkali.
- 19. the science or technique of classification.
- 21. apt or liable to vary or change; changeable: