A Simple Lemon Battery Follow FizzicsEd 150 Science Experiments: Comments 8 You will need: One lemon or orange A copper coin or copper metal A ‘silver’ zinc coin or aluminium metal One knife (adults only) A chopping board A bowl A Multimeter (you can get this from a hardware or electronics store) As long as you have two different types of metal, the experiment will work. Copyright Instruction 1 Wash the coins thoroughly and dry them. 2 Roll the lemon or orange across a bench, pushing down to ‘juice’ the lemon. 3 Ask an adult to carefully cut two small slits in the rind, fairly close together. Place the coins into the slits, making sure they don’t touch each other. 4 Try measuring the current created in the circuit using a multimeter. You will need to touch one electrode to one of the metals and then the other electrode to the other metal. What happens if you swap electrodes from one metal to another? 5 Get the Electricity & Magnetism Unit of Work here! How does electricity actually flow? What makes magnets become magnetic? Why is there electromagnetism and what does this tell us about electricity & magnetism? From series & parallel circuits to conductors & insulators, there’s a lot to explore & learn! Includes cross-curricular teaching ideas, student quizzes, a sample marking rubric, scope & sequences & more. 6 School science visits since 2004! – Curriculum-linked & award-winning incursions. – Over 40 primary & high school programs to choose from. – Designed by experienced educators. – Over 2 million students reached. – Face to face incursions & online programs available. – Early learning centre visits too! 7 Online courses for teachers & parents – Help students learn how science really works Why Does This Happen? The coins are made of two different materials, i.e. copper and zinc – not really silver! When you place two different metals apart in an acid, a current of electricity will flow if you complete the circuit. The acid in the lemon allowed the copper atoms to travel to the Zinc coin, whilst electrons from the zinc coin travel towards the copper coin. You’ve made a simple Voltaic Cell. Variables to test More on variables here Try a lime, a grapefruit, a mandarin and other citrus fruits. Do they have any difference compared to the lemon? What about trying a potato, a beetroot, pumpkin or any other kitchen vegetable or fruit! Try different combinations of coins. Try different metals in the fruit. Learn More! Electrical Circuits Years 3 to 6 Maximum 30 students School workshop (NSW & VIC) 60 or 90 minutes Read More Enquire Now Clip Circuit Electro Lab (80 experiments) $32.95 inc. GST View Details Add to Cart Trustpilot STEM Full Day Accelerator - Primary Designed from real classroom experiences, this modular day helps you create consistently effective science learning that directly address the new curriculum with easily accessible and cost-effective materials. Read More Enquire Now Be Amazing! How to teach science, the way primary kids love. $29.95 inc. GST View Details Add to Cart Trustpilot
Ask an adult to carefully cut two small slits in the rind, fairly close together. Place the coins into the slits, making sure they don’t touch each other.
Try measuring the current created in the circuit using a multimeter. You will need to touch one electrode to one of the metals and then the other electrode to the other metal. What happens if you swap electrodes from one metal to another?
Get the Electricity & Magnetism Unit of Work here! How does electricity actually flow? What makes magnets become magnetic? Why is there electromagnetism and what does this tell us about electricity & magnetism? From series & parallel circuits to conductors & insulators, there’s a lot to explore & learn! Includes cross-curricular teaching ideas, student quizzes, a sample marking rubric, scope & sequences & more.
School science visits since 2004! – Curriculum-linked & award-winning incursions. – Over 40 primary & high school programs to choose from. – Designed by experienced educators. – Over 2 million students reached. – Face to face incursions & online programs available. – Early learning centre visits too!
Electrical Circuits Years 3 to 6 Maximum 30 students School workshop (NSW & VIC) 60 or 90 minutes Read More Enquire Now
STEM Full Day Accelerator - Primary Designed from real classroom experiences, this modular day helps you create consistently effective science learning that directly address the new curriculum with easily accessible and cost-effective materials. Read More Enquire Now
Designed from real classroom experiences, this modular day helps you create consistently effective science learning that directly address the new curriculum with easily accessible and cost-effective materials.
Be Amazing! How to teach science, the way primary kids love. $29.95 inc. GST View Details Add to Cart Trustpilot
THIS IS AMAZING!!!!!!!!!!!! ITS A GOOD USE FOR LEMONS. WHY IS THE PICTURE A LIME WHEN IT SAYS LEMON? Reply
Glad you liked it! As for the lime, these were unripe lemons picked from my tree 🙂 We’ll take some nicer shots with yellow lemons at some point soon but for now we just wanted the information out there to help. Have fun experimenting! Reply
Ha! The voltage is not high at all so it’ll be fine, albeit sour and slightly metallic tasting. The metals themselves may not be clean though, so maybe leave that be for now 🙂 Reply
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