ELENA PUZZLE

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Across
  1. 2. (Science) The basic unit of life (4 letters).
  2. 3. (Science) The process by which plants make their food using sunlight (14 letters).
  3. 6. (Science) Force that pulls objects toward the center of the Earth (7 letters).
  4. 7. (English) A type of noun that names a person, place, or thing that can be identified through the senses (9 letters).
  5. 9. (Math) A polygon with six sides (7 letters).
  6. 10. (Math) A number's distance from zero on a number line (8 letters).
Down
  1. 1. (English) A word that connects clauses or sentences (12 letters).
  2. 4. (Math) A triangle with all sides of different lengths (8 letters).
  3. 5. (English) A comparison using "like" or "as" (6 letters).
  4. 8. (Science) The movement of water from the Earth's surface to the atmosphere (9 letters).