Handmade DIY Electronic Science Experiment Set for Kids Physical Puzzle Educational Toy Plastic Material Solar Fan Hand Operated Generator Simple Motor Music Doorbell 7-14 Years STDC12 STDC6 STDC9
DIY Electronic Science Experiment Set for Kids Hands-On Brain Training Plastic Solar Fan Generator Motor Doorbell

This handmade DIY electronic science experiment set offers a practical way for children aged 7 to 14 to explore basic physics and electronics. By building their own solar fan, hand operated generator, simple motor, and music doorbell, young learners develop problem-solving skills and spatial awareness. The kit is designed to be assembled and disassembled multiple times, providing repeatable learning opportunities. Made from lightweight plastic, each module is safe for junior students to handle without adult supervision during play. Whether at home or in a classroom, this set encourages independent thinking and fine motor coordination through real construction tasks.
Features and Construction

Each experiment module in this set has its own dimensions and function, giving children four distinct build experiences. The plastic housing is sturdy enough for repeated use, and all parts fit together without glue or screws.
Solar Fan
The solar fan measures 90mm in length, 75mm in width, and 130mm in height. It uses sunlight to power a small fan blade, introducing renewable energy concepts in a tangible way. Ideal for outdoor or window-side play on sunny days.
Hand Operated Generator
This module is 95mm long, 110mm wide, and 130mm high. Turning the hand crank generates electricity to light a small bulb or power the connected device. It teaches mechanical-to-electrical energy conversion through direct physical effort.
Simple Motor
The self made simple motor measures 90mm by 75mm by 53mm. It demonstrates how electrical energy from a battery can create rotational motion. Children can connect it to the generator or solar fan output to see a complete circuit in action.
Music Doorbell
The music doorbell module is 95mm long, 75mm wide, and 40mm high. It produces a simple tune when activated, introducing basic circuit completion and sound output. Compact enough to fit in a small hand, it is the easiest build for beginners.
Uses and Placement

This set is designed for educational play at home, in after-school clubs, or as part of a school science curriculum. Each module works independently, so children can focus on one experiment at a time or combine them for more advanced projects.
Classroom Science Demonstrations
Teachers can use the four modules to illustrate energy conversion (solar to electrical, mechanical to electrical, electrical to motion, electrical to sound). The small size of each unit allows several kits to be used simultaneously in a group setting.
Weekend and Holiday Projects
Parents looking for screen-free activities will find this set a reliable choice. Children can spend an hour or more assembling each module, and the disassembly-reassembly nature means the kit stays fresh on repeat attempts.
Benefits and Buying Value

This set offers multiple learning outcomes from a single purchase. The ability to build four different devices (solar fan, hand generator, motor, doorbell) gives children a broad introduction to electronic and mechanical principles.
Repeated Use and Durability
All parts are made from plastic and are designed for multiple assembly cycles. There are no single-use components, and the modules can be stored flat or reassembled for future projects. The lack of glue or permanent connections reduces waste.
Skill Development Focus
The kit explicitly targets hand and brain coordination, which supports fine motor development and logical thinking. Each experiment has a clear outcome (light, motion, sound), giving instant feedback that maintains engagement.

