

科学の本を読むのが好きです。
週末、科学博物館に行きました。
息子は科学に興味がありません。
"かがく(科学)" is in the lesson "Education" (Level 14), along with 12 other useful words. LinDuo has 180 topic lessons like this one, 2,379 words in total. Every word has an illustration, a transcription and pronunciation in a female and a male voice. Just 10–15 minutes a day is enough to learn them all. Free, and works offline.