Across
- 2. The chemical element with the symbol "H."
- 3. A force that attracts two masses toward each other.
- 6. The scientist known for his theory of relativity.
- 7. The natural satellite that orbits Earth.
- 14. The act of converting a solid directly into vapor.
- 15. The process of plants releasing water vapor into the air.
- 17. The document that outlines a country's basic laws and principles.
- 18. The study of the Earth's physical features.
- 20. A unit of measurement for electric current.
- 22. The largest bone in the human body.
- 23. The process of converting a gas into a liquid.
- 24. A celestial body made of ice, dust, and gas that orbits the Sun.
Down
- 1. The process of plants making their own food using sunlight.
- 4. The process of water vapor turning into liquid.
- 5. A unit of measurement for distance in space.
- 8. A nocturnal bird of prey known for its silent flight.
- 9. The largest planet in our solar system.
- 10. The smallest particle of an element.
- 11. The outermost layer of the Earth's atmosphere.
- 12. The organ responsible for filtering and detoxifying blood.
- 13. The smallest prime number.
- 14. The sensation caused by the taste of something acidic.
- 16. scattering The phenomenon that causes the sky to appear blue.
- 19. The capital city of Italy.
- 21. The smallest planet in our solar system.