Chapter 1 Vocab Crossword Puzzle

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Across
  1. 2. a proposed scientific explanation for a set of observations
  2. 3. process by which a single parent reproduces by itself (2 words)
  3. 7. well-tested explanation that unifies a broad range of observations
  4. 8. the process of gathering information about events or processes in a careful, orderly way
  5. 9. group of cells grown in a nutrient solution from a single original cell (2 words)
  6. 11. microscope that allows light to pass through a specimen and uses two lenses to form an image (3 words)
  7. 17. the variable that is deliberately changed in an experiment (2 words)
  8. 18. an organized way of using evidence to learn about the natural world
  9. 19. the information gathered from observations
  10. 22. a signal to which an organism responds
Down
  1. 1. the idea that life can arise from nonliving matter (2 words)
  2. 4. a technique to separate the different cell parts (2 words)
  3. 5. system decimal system of measurement based of certain physical standards and scaled on multiples of 10 (2 words)
  4. 6. set of chemical reactions through which an organism builds up or breaks down materials as it carries out its life processes
  5. 10. process of which organisms maintain a relatively stable internal environment
  6. 11. an experiment in which only one variable is changed at a time (2 words)
  7. 12. a logical interpretation based on prior knowledge or experience
  8. 13. the variable that is observed and that changes in response to the manipulated variable (2 words)
  9. 14. process by which cells from two different parents unite to produce the new cell of a new organism (2 words)
  10. 15. microscope that forms an image by focusing beams of electrons onto a specimen (2 words)
  11. 16. device that produces magnified images of structures that are too small to see with the unaided eye
  12. 20. basic unit of all forms of life
  13. 21. the science that employs the scientific method to study living things