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