Across
- 2. Animals that sleep during the day and are active at night.
- 5. Type of light bulb that is very energy efficient.
- 9. Branch of government that decides if laws are fair.
- 13. The energy that powers light bulbs, computers, and other devices.
- 14. Animals without a backbone.
- 15. Rocks formed when extremely hot magma cools and solidifies.
- 17. Type of government in charge of the state.
- 18. Rocks formed by pressing sediments together
- 20. Animals with a backbone.
Down
- 1. Side in the Civil War in support of slavery.
- 3. Highest law in the United States.
- 4. Branch of government that makes the laws.
- 6. The first president of the United States.
- 7. Type of government in charge of the whole nation.
- 8. Side in the Civil War against slavery.
- 10. The first type of light bulb created.
- 11. The third president of the United States.
- 12. Animals that sleep at night and are active during the day.
- 16. Branch of government that enforces the laws.
- 19. Rocks formed by extreme pressure and heat.