1. aquatic Pronunciation: \ə- ˈ kwä-tik, - ˈ kwa-\ Function: adjective Date: 1610 1 : growing or living in or frequenting water 2 : taking place in or on water

2. aqueduct Pronunciation: \ ˈ a-kwə- ˌ dəkt\ Function: noun Etymology: Latin aquaeductus, from aquae (genitive of aqua) + ductus act of leading — more at duct Date: 1538duct 1 a: a conduit for water; especially : one for carrying a large quantity of flowing water b: a structure for conveying a canal over a river or hollow

4. arbitrate Pronunciation: \ ˈ är-bə- ˌ trāt\ Function: verb Date: 1592 1: to act as arbiter upon-arbiter 2: to submit or refer for decision to an arbiter : to act as arbiter decide, determinearbiter decidedetermine

6. bacillus Pronunciation: \bə- ˈ si-ləs\ Function: noun Etymology: New Latin, from Medieval Latin, small staff, rod, diminutive of Latin baculus staff, alteration of baculum Date: circa 1879 1: a straight rod-shaped bacterium 2: bacterium; especially : a disease-producing bacteriumbacterium

8. ratify Pronunciation: \ ˈ ra-tə- ˌ fī\ Function: verb Etymology: Middle English ratifien, from Anglo-French ratifier, from Medieval Latin ratificare, from Latin ratus determined, from past participle of reri to calculate — more at reason Date: 14th centuryreason 1: to approve and sanction formally 2: confirm confirm "All parties ratified the peace treaty"; "Have you signed your contract yet?"

9. plunder Pronunciation: \ ˈ plən-dər\ Function: verb Etymology: German plündern Date: 1632 1: a: to take the goods of by force (as in war) : pillage, sackpillagesack b: to take by force or wrongfully : stealsteal, loot loot

11. amphibian Pronunciation: am·phib·i·an \-bē-ən\ Function: noun Etymology: ultimately from Greek amphibion amphibious being, from neuter of amphibios Date: 1835 1: an amphibious organism; especially : any of a class (Amphibia) of cold- blooded vertebrates (as frogs, toads, or salamanders)amphibious 2: an amphibious vehicle; especially : an airplane designed to take off from and land on either land or wateramphibious

13. sedimentary Pronunciation: \ ˌ se-də- ˈ men-tə-rē, - ˈ men-trē\ Function: adjective Date: 1830 1 : of, relating to, or containing sediment sediment 2 : formed by or from deposits of sediment sediment

14. solubility Pronunciation: \ ˌ säl-yə- ˈ bi-lə-tē\ Function: noun Date: 1661 1 : the quality or state of being solublesoluble 2 : the amount of a substance that will dissolve in a given amount of another substance - a homogeneous mixture of two or more substances; frequently (but not necessarily) a liquid solution; "he used a solution of peroxide and water" Solubility is the ability of a gas, liquid, or solid to dissolve in water (or sometimes another liquid). A lava lamp, however, depends on the globs not being soluble. It also depends on the globs being about the same density as water. It tooks years to develop the right ingredients to make a lava lamp work.

15. permeate Pronunciation: \ ˈ pər-mē- ˌ āt\ Function: verb Etymology: Latin permeatus, past participle of permeare, from per- through + meare to go, pass; akin to Middle Welsh mynet to go, Czech míjet to pass Date: 1656 1: to diffuse through or penetrate something 2: to spread or diffuse through

16. Zooplankton: Microscopic free- floating animals. These small animals eat phytoplankton and, in turn, are eaten by larger animals along the aquatic food chain. Oxygen: A gas upon which most life depends. Water contains dissolved oxygen. Phytoplankton: Microscopic free- floating green plants. Fish: A vertebrate (animal with a spine) that lives in water. Healthy bodies of water have different kinds and sizes of fish. Bottom Life: Bottom life includes worms, snails, crayfish, mussels, clams and insect larvae. Sediment: Mud, Sand, or Gravel which has settled to the bottom of a body of water. These small animals eat phytoplankton and, in turn, are eaten by larger animals along the aquatic food chain.