Crossword

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Across
  1. 1. To make changes with the intent of improving something
  2. 4. A four sided structure with a pyramid shaped top; a common monument in ancient Egypt.
  3. 6. A structure that is designed to reduce the amount of energy that reaches it.
  4. 8. An Egyptian queen that became pharaoh and helped expand trade in Egypt.
  5. 9. A symbol for an unknown quantity in mathematics
  6. 10. To make changes to something
Down
  1. 2. A pharaoh of Egypt that expanded the empire and ruled for 66 years
  2. 3. A process that reverses the effect of another process
  3. 5. An agreement between two or more groups or countries to help put an end to a disagreement or conflict
  4. 7. A pharaoh that made many unpopular changes while he ruled