1.09 experiments Essay

596 WordsSep 10, 20133 Pages
Trial # Guess Observation Explanation Trial 1 The dyed red water will not seep into the blue cold water. My guess was indeed correct and red water did not interfere with the blue water. Because the molecules in the blue water are much closer together because its cold and well the red water has warm/hot water and the molecules are everywhere. The molecules in the blue water are so dense that they’re making a layer so that the molecules from the red jar do not come through. Trial 2 I think this time blue on top will fail and seep into the red. So my guess was correct again. The blue water did slowly enter the red water. The reason for this is because of density and how dense the cold water really is. That’s why when you put…show more content…
3. Q-Thinking about what you learned in the lab and doing some additional research, if you mixed fresh and salt water together in the marine environment, how would the water “layer”? Where would the freshwater be and why? A- Salt water is more dense than fresh water, and therefore sinks under fresh water - which is exactly what happens in estuaries, which are areas near the mouth of a river where fresh water and salt water do mix. 4. Q- When fresh and saltwater mix in the marine environment, this is called an estuary, or brackish water environment. Why would bottom dwelling organisms in an estuary need to be able to withstand brackish water? A-Bottom dwellings in an estuary need to be able to withstand brackish water because fresh water in an estuary flows out over the surface and ocean water with higher amounts of salt flows in on the bottom 5. Q-Based on your lab and readings, what two characteristics of water combine to form a thermohaline current? A-In the deep ocean, the predominant driving force is differences in density, caused by salinity and temperature (the more saline the denser, and the colder the denser). Note that ocean currents due to tides are also significant in many
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