Diy Rainbow Catcher

描述

建造一個機動機器，讓彩虹在你的房間裏旋轉!

有8個使用易於從家裏找到的材料實驗和活動。

Build a motorized machine that makes rainbows spin around your room!

Gears and electronic components snap together, and machine sticks securely to windows.

8 experiments and activities using easy-to-find materials from home.