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4. The upper layer of earth in which plants grow, a black or dark brown material typically consisting of clay, rock particles, and organic remains
5. Layer of gasses that surround the planet
7. Found in oceans and some in land lakes, and contains high concentrations of salt
8. Wear away or change the appearance or texture by long exposure to the air
10. Geological formations, or high points
12. A verticle section section of soil from the ground surface downwards to where the soil meets the underlying rock
14. Individual living things

1. A large land area in which water is drained into the soil to emerge at lower elevations
2. Made up of a community and all of the non-living components in the environment
3. Water that flows from land to oceans containing little or no salt
6. A measure of how close a series of measurements are to one another, irrespective of the actual value
7. Tool used to classify soil types and textures based on the relative proportions of sand, silt, and clay particles
9. An educated guess that is testable
11. The ability to do work or cause change
13. When changes occur in an area nearly every species is impacted