| Query | User |
|---|---|
| build your own solar panel | entered by user 7856918 |
| candle powered boat | entered by user 1068490 |
| coil gun | entered by user 2844596 |
| how to make science toys | entered by user 11542652 |
| making a solar panel | entered by user 5333474 |
| scince | entered by user 11403050 |
| simple steam engine | entered by user 3590021 |