NDLI: What's the Conductivity of Gatorade?

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What's the Conductivity of Gatorade?

Content Provider	TeachEngineering: STEM curriculum for K-12
Author	Williams, Keeshan Fonda, Jill Kapila, Vikram
Copyright Year	2009
Description	Students use conductivity meters to measure various salt and water solutions, as indicated by the number of LEDs (light emitting diodes) that illuminate on the meter. Students create calibration curves using known amounts of table salt dissolved in water and their corresponding conductivity readings. Using their calibration curves, students estimate the total equivalent amount of salt contained in Gatorade (or other sports drinks and/or unknown salt solutions). Students use conductivity meters to measure various salt and water solutions, as indicated by the number of LEDs (light emitting diodes) that illuminate on the meter. Students create calibration curves using known amounts of table salt dissolved in water and their corresponding conductivity readings. Using their calibration curves, students estimate the total equivalent amount of salt contained in Gatorade (or other sports drinks and/or unknown salt solutions). This activity reinforces electrical engineering concepts, such as the relationship between electrical potential, current and resistance, as well as the typical circuitry components that represent these phenomena. The concept of conductors is extended to ions that are dissolved in solution to illustrate why electrolytic solutions support the passage of currents.
Language	English
Access Restriction	Open
Rights Holder	Polytechnic Institute of New York University Regents of The University of Colorado
Subject Keyword	Science and Technology Electrode Polarization Electrical Engineer Circuit Sports Drink Electricity Alternating Current Capacitor Current Microcontroller Conductivity Gatorade Resistor Electrolyte
Content Type	Text
Time Required	PT45M
Education Level	Class VIII Class IX Class X Class XI Class XII
Pedagogy	Experimental Activity
Resource Type	Hands-on
Subject	Technical

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