Math State Testing Week 6th

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Across
  1. 1. the structures inside a cell that do certain tasks
  2. 3. measures the concentration of hydrogen ions in a substance
  3. 5. the order in which things appear or happen
  4. 10. gases that contribute to the heating of Earth’s surface
  5. 11. Another name for basic; substances that measure above 7
  6. 12. tiny packets of electromagnetic radiation or energy
  7. 14. neither an acid nor a base
  8. 16. change from a gas into a liquid
  9. 17. energy moving from one area to another; it always moves toward the area with less thermal energy
  10. 19. a soft, flexible layer; a cell membrane allows some fluids and solids to pass through it
  11. 20. done without wasted effort or expense
  12. 22. a chemical that changes color when it comes in contact with an acid or a base
  13. 23. the amount of something in a substance
  14. 24. squeeze together or become smaller
  15. 25. developed or changed over time
  16. 26. small, individual pieces of matter that contain two or more atoms
  17. 27. a bitter substance that has a pH of greater than 7
  18. 28. the entire genetic sequence contained in a cell’s DNA and chromosomes; the word is a combination of gene and chromosome
  19. 29. uses photons to create electricity
Down
  1. 2. the organelle that is in charge of reproduction and makes proteins
  2. 4. solid elements that aren’t great conductors, but which can be altered by human beings to perform specific electrical tasks, especially in computers; silicon is the most commonly used semiconductor
  3. 6. the building blocks of life
  4. 7. deoxyribonucleic acid
  5. 8. a sour substance that has a pH of less than 7
  6. 9. having one particular task or purpose
  7. 12. devices that contain special chemical elements and compounds called semiconductor
  8. 13. the amount of moisture in the air
  9. 15. the stretches of DNA molecules that carry the code for proteins. These determine the characteristics or traits a plant, animal, or human being will have
  10. 18. twisted or bent out of shape
  11. 21. a rotating engine that works when a gas or liquid flows through it
  12. 23. the long molecules of DNA; human beings have 23 pairs of chromosomes