This site will be taken down March 31st, 2026.

This was not an easy decision to make. For the last couple years, I have been struggling to find motivation for this site and to keep up with basic maintenance and security updates. With the rise of AI and more sophisticated tools, the usefulness of sites like this is questionable and traffic has nose-dived. I just don't have it in me to keep doing this. Thank you all for 10 years of support!

Zach

Sentence

5.反応が終わったら、濡れ雑巾の上に試験管をおく。

5.反応(はんのう)()わったら、()雑巾(ぞうきん)(うえ)試験管(しけんかん)をおく。
5. When the reaction is over, place the test-tube on a damp cloth.
Sentence

机の上に寝かせて置くと転がって落ちることがあるので、試験管立てに立てておく。

(つくえ)(うえ)()かせて()くと(ころ)がって()ちることがあるので、試験管立(しけんかんだ)てに()てておく。
If you leave them lying on the desk they may roll off, so stand them in the test-tube rack.
Sentence

試験管を壊したり、おもしろ半分に化学製品をあれこれいじって遊んだが、時には、教師の指示になんとか従って、ずっと以前に他の人々が試みた実験を繰り返すこともした。

試験管(しけんかん)(こわ)したり、おもしろ半分(はんぶん)化学(かがく)製品(せいひん)をあれこれいじって(あそ)んだが、(とき)には、教師(きょうし)指示(しじ)になんとか(したが)って、ずっと以前(いぜん)()人々(ひとびと)(こころ)みた実験(じっけん)()(かえ)すこともした。
Although I broke test tubes and played about with chemicals for fun, I did occasionally manage to obey the teacher's instructions as well; repeating experiments that others had long ago undertaken.