自分で組み立てる浄水器 グリーンサイエンス 8歳以上
I got this Green Science Purificador de Agua for my 9-year-old and we built it together in one afternoon. The instructions are clear enough and the experiment actually works: you see dirty water go through the filter stages and come out clearer. It is a nice hands-on way to talk about science. The pieces are small, so keep an eye on younger kids. Good for ages 8 and up as stated, though adult help is useful. Sturdy enough for repeated use.