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How Does the pH Level of a Fruit Affect Its Electric Current When It Is Made into a Voltaic Cell? R Will the citrus fruit battery with the most pH (most acidic) create the most electricity? S Build and demonstrate a homemade battery from different fruits or vegetables (lemon, potato, etc.). R R R R R R R R R R R R R R S S Build a vinegar battery and compare its efficiency with a lemon and a potato battery. R R How many fruits, vegetables, and children does it take to generate enough electricity to run a clock? R R The battery: science, technology, history and innovations. R R R S Which battery works better? Alkaline, lithium, heavy duty, nickel cadmium, or nickel metal hydride? R R S Evaluate 3 different methods of transferring residual energy from "dead" AA batteries into a nickel metal hydride (NiMH) battery to make it useable. R Determine if exposing Duracell batteries to freezing temperatures for short periods of time will cause them to die faster than Duracell batteries that are not exposed to freezing temperatures. R Will batteries connected in series make a light bulb glow brighter than batteries connected in parallel? S Does temperature affect the output voltage or current of a dry cell battery? R R R S S S Build and demonstrate different types of dry cells - Daniell's cell, concentration cell, Volta's pile. R R R What battery is the best deal in terms of price and the length of use? R R R R S S Which Brand of AA Battery Lasts the Longest? Rechargeable vs. Disposable S Which AA battery brand maintains its voltage for the longest period of time? R S S S S S What combination of materials (metals) makes the most efficient battery (dry-cell, wet-cell) cathodes? R S S S S S Make a homemade dry cell and compare its efficiency with a wet cell. R Make a human battery R R Make a battery out of money. R Operation time of various rechargeable batteries in extreme cold S How does cold affect hearing aid battery life? R Do galvanic cells stop recharging over time due to deterioration of their electrodes? R Investigate batteries and battery chargers R R S Battery & Cell K-12 Experiments and Background Information |
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Science Fair Projects Resources
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Electricity Basics R Battery & Cell Background R Electricity & Electronics Inventions and Discoveries R Citation Guides, Style Manuals, Reference R Electrical Safety R R |
