Across
- 4. – The preserved remains or traces of ancient life.
- 5. – Allowing light to pass through so objects can be seen clearly.
- 8. – The collection of words known or used by a person or language.
- 10. – Water that falls from the atmosphere as rain, snow, or hail.
- 11. – The process of planning and following a route.
- 12. – The ability to blend into the surroundings.
- 15. – The process of a liquid changing into gas.
- 16. – A scientist who studies ancient civilizations through artifacts.
- 18. – The quality of having matching parts on opposite sides.
- 19. – The movement of one object around another.
Down
- 1. – A major change in an animal's form during development.
- 2. – The line where the sky seems to meet the land or sea.
- 3. – A group of stars forming a recognizable pattern.
- 5. – A measure of how hot or cold something is.
- 6. – A community of living things and their environment.
- 7. – A large, slow-moving mass of ice.
- 9. – Half of the Earth or a sphere.
- 13. – A place where scientific experiments are conducted.
- 14. – The process plants use to make food from sunlight.
- 17. – An animal that can live both in water and on land.