Why can lemons power a mini watch (What we need to know)

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Why can lemons power a mini watch (What we need to know) by Mind Map: Why can lemons power a mini watch (What we need to know)

1. What type of acid do lemons have?

2. What is the job of the acid in this case?

3. What are the benefits of powering a mini watch with a lemon instead of using a battery?

4. Can other fruits do so as well?

5. What is the whole scientific process behind this?

6. Does the metals that is inserted into the lemon matters?

7. What is the scientific explanation of acid?

8. How long can the lemon-powered mini watch last?