History of Ocean Exploration and Aquariums Review



Aquariums & Water Properties ReviewAquariums_____ gallons of water per bucket._____ gallons of water for the aquarium.How much salt goes into each bucket of water?How much dechlorinator was used for your whole aquarium?What is the approved Salinity for:Fresh WaterEstuary WaterSalt WaterYour AquariumWhat is the purpose of each of the following? Be able to name by sight.Filter cartridgePower filterLidHydrometerGravel/ SubstrateBiowheelWhat are the three types of chemicals tested for that are toxic to fish? Be able to test for these chemicals.What is the accepted range of pH for a saltwater aquarium? pH of Freshwater?Alkaline chemicals (bases) are ___ 7. (<, >, =)Acids are ____ 7. (<, >, =) Be able to use a hydrometer and know what to do if the water is too salty or too fresh.What bacteria is responsible for removing ammonia? Nitrite? How is Nitrate removed from a natural ecosystem? Your aquarium? Place the tanks in order from most saline (salty) to least saline. Brackish, freshwater, saltwater, brine.What is the accepted value of ammonia in your aquarium? 0 ppm Nitrite? 0 ppm Nitrate? 5 ppm You’re welcome (:What is the period of time it takes for an aquarium to establish the nitrogen cycle prior to putting in organisms called?Name & describe the three types of filtration.Is your aquarium a closed or open ecosystem? Which has a higher population density?What method should you use when pouring fresh salt water into your tank to avoid clouding?Properties of Water What happens to salinity when each of the following occur: a) snowmelt, b) evaporation, c) precipitation, d) freezing What do we mean when we say “water is polar”? Which side is positive and which side is negative?What is the difference between cohesion and adhesion?Why can a solid object (such as an insect) that has a density greater than water stay on top of the water?What is the tendency for a liquid to climb up a small tube called?An aquatic scientist wants to find the density of a rock that weights 23g and displaces 43mL of water in a graduated cylinder. What is the rock’s density? Does it float or sink in freshwater?What is the mass of 452mL of salt water? (Density = 1.017 g/mL)Define buoyancy.If a large ship is floating in the ocean and displaces 1,234,567 kg of water what is the mass of the ship?An object that is 5.5 g displaces 5.4 mL of water. Does it sink or float?Why is water considered the universal solvent?Define: Solution, solute, solvent, suspensionWhat type of bonding forms between water molecules to give it surface tension?An object at 33 ft deep in the ocean experiences _________ pressure. (include units)Place the objects from highest pressure to lowest. A) on top of a mountain, B) bottom of the sea, C) in Cypress, TX, D) 10 ft deep in a poolAs you go deeper in the ocean… ( ↑, ↓)a) pressure ___, b) density ___, c) salinity___Find the salinity: Density= 1.015 @ 28 deg. CFind the salinity: Density= 1.009 @ 22 deg. C ................
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