Easy DIY Water Pump Science Project | How to Make a Pen Water Pump

How to Make a Mini Water Pump Using an Old Pen & DC Motor! | Easy Science Project Learn how to build a powerful DIY Mini Water Pump at home using an old ballpoint pen, a small 3.7V DC motor, a drinking straw, and electrical wires! This is a fun, easy, and low-cost science experiment perfect for school projects, science fairs, or simple DIY home engineering. In this step-by-step tutorial, you'll see how simple household items can be recycled into a working water pump system powered by a simple 3.7V rechargeable battery. 🛠️ Materials Used in This Video: • Old Plastic Pen Body • Small 3.7V DC Motor • Drinking Straw (or mini clear tube) • 3.7V Battery / Power Source • Electrical Wires & Hot Glue • Plastic Water Container 💡 What You Will Learn: • Basic centrifugal pump working principle • How to reuse household items for science projects • Wiring a basic DC motor circuit If you enjoyed this video, please LIKE, SHARE, and SUBSCRIBE for more DIY science projects, hacks, and experiments! #DIY #ScienceProject #WaterPump #DCMotor #HowToMake #STEM #SchoolProject #MiniWaterPump #CreativeFest