Lesson 3.2 vocab

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Across
  1. 1. The scientific classification of organisms into specially named groups based either on shared characteristics or on evolutionary relationships as inferred from the fossil record or established by genetic analysis.
  2. 9. The group OH. Hydroxyl is present in bases, certain acids, hydroxides, and alcohols.
  3. 10. A numerical measure of the acidity or alkalinity of a solution, usually measured on a scale of 0 to 14
  4. 11. a compound usually having a sour taste and are capable of neutralizing alkalis and reddening blue litmus paper
  5. 14. a systematic approach to acquiring new knowledge through observation and experimentation
  6. 17. A factor or condition that is subject to change, especially one that is allowed to change in a scientific experiment to test a hypothesis.
  7. 19. An atom or a group of atoms that has an electric charge. Positive ions, or cations, are formed by the loss of electrons; negative ions, or anions, are formed by the gain of electrons.
  8. 20. A standard of comparison for checking or verifying the results of an experiment
  9. 22. Often the scientific method the method of discovery used by scientists from the Enlightenment onward,
  10. 24. a graphic representation, as by curves, of a dependent variable, as temperature, price, etc.; graph.
  11. 25. that is or may be estimated by quantity.
Down
  1. 2. alkaline condition; the quality that constitutes an alkali.
  2. 3. A statement that explains or makes generalizations about a set of facts or principles, usually forming a basis for possible experiments to confirm its viability.
  3. 4. the quality or state of being acid
  4. 5. pertaining to or concerned with quality or qualities.
  5. 6. to derive by reasoning; conclude or judge from premises or evidence.
  6. 7. a logarithmic measure of how acidic or basic a solution is, ranging from 0 to 14
  7. 8. a key used to identify a plant or animal in which each stage presents descriptions of two distinguishing characters,
  8. 12. The systematic grouping of organisms according to the structural or evolutionary relationships among them.
  9. 13. an act of predicting.
  10. 15. to arrange or organize by classes; order according to class.
  11. 16. A diagram showing the relationship of quantities, especially such a diagram in which lines, bars, or proportional areas represent how one quantity depends on or changes with another.
  12. 18. Neither acid nor alkaline.
  13. 21. Any of a class of compounds that form hydroxyl ions (OH) when dissolved in water,and have a pH greater than 7.
  14. 23. a seeking or request for truth, information, or knowledge.