Lemon and Potato Wet Cell Batteries. Purpose: Investigate which metals and which wet cell food...
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Lemon and Potato Wet Cell Batteries
Purpose: Investigate which metals and which wet cell food source makes a better battery
Materials: Lemon Potato CopperZinc Steel MultimeterConnecting wires Metric Ruler
Hypothesis: When placed in a ____________at a distance of __________ the __________and __________ metals will make the best battery.
Safety: Wear goggles and wash hands after lab.
Procedure: (8 steps)Preparation of Lemon and PotatoSoften the potato and lemon to increase juice productionUse 1cm, and 2 cm distances between electrodes
Data Table: Volt ReadingsElectrodes Lemon Potato
Copper –Steel 1cm
2cm
Steel –Zinc 1cm
2cm
Zinc – Copper 1cm
2cm
Bar Graphs (2) StackedBar
1 graph for the lemon and 1 graph for the potato
X axis C-Z, Z-S, S-CY axis Voltage
6 bars for each graph 1 bar for1 cm and 1 for 2cm
Questions
1. What combination of metals and distance produced the highest voltage?
2. If you change only the distance but use the same metal strips, what is the effect on voltage?
3. Which makes a better battery? Explain why.