Monitor the voltage generated by a biological fuel cell, using the yeast Saccharomyces cerevisiae. A simple sugar will be used as a food source for the yeast and methylene blue will be employed as an electron mediator. The cell will be constructed without the mediator and a baseline voltage will be established as some electrochemical activity will be occurring. Once the cell has stabilized, the mediator will be added and the effect on voltage will be monitored and recorded using a Neulog™ Voltage sensor.There are enough materials for 15 set ups. Aligned to the Next Generation Science Standards (NGSS)* Disciplinary Core Ideas: PS1.A; PS1.B Performance Expectations: MS-PS1-3 Cross Cutting Concepts: Structure and Function Engineering Practices: Obtaining, Evaluating and Communicating Information Kit Includes: 5 Red Connecting Wires w/Alligator Clips 5 Black Connecting Wires w/Alligator Clips 15 Carbon Electrodes 10 Bottles 5 Measuring Caps 20 Filter Paper Strips Phosphate Buffer, to make 500ml 5mL Potassium Ferricyanide 25g Glucose 5mL Methylene Blue 10g Active Yeast Required: Voltage sensor DOT Info: Non-regulated *”Next Generation Science Standards” is a registered trademark of Achieve. Neither Achieve nor the lead states and partners that developed the Next Generation Science Standards was involved in the production of, and does not endorse, this product. WARNING: This product can expose you to chemicals including Phthalates, which is known to the State of California to cause reproductive harm. For more information go to http://www.P65Warnings.ca.gov.