Science Projects: lemon Batteries
- A lemon, or other citrus fruit
- 18 (or smaller) gauge copper wire
- Wire stripper/clipper
- A grown-up or older friend
- Steel paper clip, small galvanized nail (one that is covered in zinc), or a piece of zinc (ideal)
- Tell the grown-up to first strip about 2 1/2 inches of plastic insulation off the copper wire. Then clip that piece of stripped wire off of the main roll.
- Carefully straighten the steel paper clip. Use the wire clippers to cut it to the same length as your copper wire.
- Use the sandpaper to rub out any rough spots in your wire or paperclip.If you are using the zinc covered nail or piece, scratch it lightly with the sand paper to expose a fresh surface.
- Roll the lemon gently on a table to break the cell walls and loosen up the juice inside. The sour juice is needed for the chemical reaction that you are about to start. The sour juice is basically acid and to be more precise citric acid.
- Carefully stick the copper wire about 1 inch into the lemon.
- Make sure your tongue is moist with saliva, or spit. Touch your tongue to the copper wire.
- Stick the paperclip, zinc covered nail or zinc strip into a spot in the lemon about 1/4 inch away from the copper wire. Make sure the wires don’t touch. The wires need to be close to each other because they will be swapping matter in the chemical reaction. If they are too far apart, the matter might lose their way.
When you touched your tongue to just the copper wire, you most likely would not have noticed anything unusual. When you touched your tongue to BOTH of the metal ends, you might have felt a tingle, or noticed a metallic taste.
Author: Niketha Mohan
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http://www.blog.schoolgully.com/science-experiments/science-lemon-batteries/http://www.blog.schoolgully.com/wp-content/uploads/2016/11/photo-1454944338482-a69bb95894af.jpehttp://www.blog.schoolgully.com/wp-content/uploads/2016/11/photo-1454944338482-a69bb95894af-150x150.jpeScience Experimentsscience,Test MATERIALS: A lemon, or other citrus fruit 18 (or smaller) gauge copper wire Wire stripper/clipper A grown-up or older friend Steel paper clip, small galvanized nail (one that is covered in zinc), or a piece of zinc (ideal) PROCEDURE: Tell the grown-up to first strip about 2 1/2 inches of plastic...admin [email protected]AdministratorSchoolgully