Vocabulary

4. This type of succession begins after a disturbance
10. two or more atoms bound together
11. Igneous rock that has small crystal due to rapid cooling above the surface
13. The chemical symbol for iron
15. This type of air typically has clear skies
17. Something solid or molten, with varying textures and crystal sizes, may or may not contain organic components
18. Not derived from living things
19. The species most important in maintaining the balance of the ecosystem

1. Ocean currents move this direction in the Northern hemisphere
2. This kind of species is anything that does not need soil to grow but can help form soil
3. The fuel of a candle
5. A stable state within an organism or ecosystem
6. a substance made of two or more elements bound together
7. Particles that have been weathered off of rock, metals, and other solids
8. The process of decay that returns nutrients to the soil
9. The way light reflects off a mineral
12. This tide has the least difference between high and low tide
14. The chemical name for Zn
16. Something solid, inorganic, naturally occurring, with a crystal structure and definite chemical composition