The Science of Biology.

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Across
  1. 2. The basic unit of a number.
  2. 5. a scientific explanation for a set of observations.
  3. 7. a well-tested explanation that unifies a broad range of observations.
  4. 8. using senses to collect information about your surroundings.
  5. 9. Organized way of gathering and analyzing evidence of the real-world.
  6. 10. Pure substance that consists entirely of one atom.
Down
  1. 1. The center of an atom.
  2. 3. series of steps that scientists follow to approach research.
  3. 4. A combination of 2 or more elements.
  4. 6. logical interpretation based on what scientists already know.