Water Temperature
Water temperature affects various aspects of aquatic ecosystems, from oxygen levels to density. Learn how to measure water temperature using a thermistor-based probe and explore the units of measurement in Celsius, Fahrenheit, and Kelvin. Discover interesting facts about freshwater density and its crucial role in supporting life under icy conditions.
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Presentation Transcript
Water Temperature Temperature Temperature expresses how hot or cold the water is or more technically the kinetic energy kinetic energy of the atoms and molecules atoms and molecules Heat energy Heat energy from sunlight, air, and thermal pollution influence water temperature
Water Temperature Water temperature influences other parameters Cold water holds more oxygen Hot water is less dense than cold water
Water Temperature Water temperature can be measured with a thermistor based temperature probe The thermistor is embedded in a thin-walled tube and encapsulated with a thermally conductive epoxy A thermistor is a temperature sensitive resistor constructed of semiconductor materials with two leads
Water Temperature Units of measure Celsius ( C) Fahrenheit ( F) Kelvin (K)
Water Temperature INTERESTING FACT INTERESTING FACT Freshwater is most dense at 4 C most dense If water was most dense freezing point (0 C) then it would sink to the bottom, freezing from the bottom up, killing all organisms most dense at its organisms. Rather the bottom of a body of water remain at least 4 C, and thus unfrozen supporting life life under the ice.
