Discover how to build a DIY mini water pump using recycled bottle caps and a small DC motor! This step-by-step tutorial shows you how to create an efficient homemade pump from everyday materials.
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How to Make a Simple Solar Cell with Copper Tape and Plastic Cups | DIY Science Project
Learn how to build a simple solar cell at home using copper tape, plastic cups, and water. This step-by-step science ...
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