Investigating Fruit Batteries
Learning challenge: Can you design an experiment to produce the biggest voltage in a
fruit battery.
Inquiry question: What factors affect the voltage produced in a fruit battery?
The Challenge:
Find the best combination of fruit and metal to get the biggest electrical potential.
You need:1. A focused question or aim2. List of equipment to use3. A labelled circuit diagram4. A 5 step method
This is my method:Step 1: __________________________________________________Step 2: __________________________________________________Step 3: __________________________________________________Step 4: __________________________________________________Step 5: __________________________________________________
My question is: ______________________________________________________The equipment I need is:1. __________2. __________3. __________4. __________
5. __________6. __________7. __________8. __________
This is my circuit:
P: Was the voltage the same or different when you changed the
combination of metals?
Extension: Was the voltage the same or different when you changed the type of fruits?
Ev: How do you know this?
Ex: Why did the voltage change when the metals or the fruits
were changed?
https://www.youtube.com/watch?v=XtHt00AN0pU
https://www.youtube.com/watch?v=GhbuhT1GDpI
ConclusionInquiry Question: What factors affect the voltage produced in a fruit
battery?
Research and answer these questions.
3 Why is there a + end and a – end?
6 Why don’t batteries electrocute you?
1 What are batteries? What is inside them?
2 What do batteries do, and how?
4 How come some batteries are rechargeable and some are not?
5 Why can’t batteries work a washing machine?
Fruit Positive electrodeNegative electrode
Potential difference (V)
Write a report to say which
combination of fruit and metal is
best.
Record your observations in a table like this.