Across
- 2. 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
- 5. the principal element or ingredient of anything, considered as its fundamental part.
- 7. that is or may be estimated by quantity.
- 9. is an act of predicting.
- 10. 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 series of actions directed to some end.
- 15. 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 (communion; union ), verbs (legion; opinion ), and especially past participles (allusion; creation; fusion; notion; torsion ).
- 16. apt or liable to vary or change; changeable: variable moods.
- 17. is an act of predicting.
- 19. Often the scientific method 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.
- 24. pertaining to or concerned with quality or qualities.
- 25. alkaline condition; the quality that constitutes an alkali.
Down
- 1. A numerical measure of the acidity or alkalinity of a solution, usually measured on a scale of 0 to 14. Neutral solutions (such as pure water) have a pH of 7, acidic solutions have a pH lower than 7, and alkaline solutions have a pH higher than 7. The pH of lemon juice is 2.4; that of household ammonia is 11.5. The normal pH for human blood is 7.4.
- 3. is the result of classifying or being classified. classify.Classify
- 4. of or relating to science or the sciences.
- 6. a graphic representation, as by curves, of a dependent variable, as temperature, price, etc.; graph.
- 8. the quality or state of being acid.
- 11. A numerical measure of the acidity or alkalinity of a solution, usually measured on a scale of 0 to 14. Neutral solutions (such as pure water) have a pH of 7, acidic solutions have a pH lower than 7, and alkaline solutions have a pH higher than 7. The pH of lemon juice is 2.4; that of household ammonia is 11.5. The normal pH for human blood is 7.4.
- 12. weather;
- 14. to exercise restraint or direction over; dominate: command.
- 18. not aligned with or supporting any side or position in a controversy.
- 20. to derive by reasoning; conclude or judge from premises or evidence.
- 21. a seeking or request for truth, information, or knowledge.
- 22. the science or technique of classification
- 23. 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.