Science

3. the almost spherical concentric regions of matter that make up the earth
8. gases surrounding a planet or other celestial body
9. the natural home or environment of an animal, plant, or other organism
10. method of transmitting information using a series of dots, dashes, and spaces
11. distinct variant of a phenotypic characteristic
12. the introduction of harmful materials into the environment
15. substance that has mass and takes up space
17. the distance over which the wave's shape repeats
18. the ability to do work
20. the change in heritable characteristics

1. a disturbance or variation that transfers energy progressively from point to point
2. the basic physical and functional unit of heredity
4. combined mass of water found on, under, and above the surface of a planet
5. is an alteration in the nucleic acid sequence
6. action of surface processes that removes soil, rock, or dissolved material
7. the SI unit of power
13. hot molten or semifluid rock
14. the worldwide sum of all ecosystems
16. long high sea wave caused by an earthquake
19. self-replicating material that is present in nearly all living organisms