1. Solar-powered phone charger: Create a small solar panel that can charge a phone or other electronic device using the power of the sun.
2. DIY lava lamp: Make a homemade lava lamp using water, oil, food coloring, and a flashlight.
3. Gravity-powered car: Build a small car that runs on gravity by releasing a weight from a height to propel it forward.
4. Mini wind turbine: Construct a small wind turbine that can generate electricity using a fan or other source of wind.
5. Homemade ice cream maker: Create a simple ice cream maker using a plastic bag, ice, salt, and your favorite ice cream ingredients.
6. DIY plant watering system: Make a self-watering plant system using a plastic bottle, cotton string, and a plant pot.
7. Balloon-powered car: Build a small car that is powered by the air released from a balloon.
8. Egg drop contraption: Design a device that can protect an egg from breaking when dropped from a height.
9. DIY rubber band helicopter: Create a simple helicopter that can fly using rubber bands and paper.
10. Hovercraft: Build a small hovercraft using a CD, balloon, and a bottle cap.
What are cool simple inventions for middle school projects
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