★ All CDs included. ★ No noticeable stains or damage. Science Songs: Biology Edition A CD + text to learn biology with 16 songs covering topics like the seven herbs of spring, seed plants, plant classification, vertebrates, and the functions of blood. Reading aloud and reciting the text further solidifies memorization. Karaoke versions are included, so you can sing along and enjoy learning biology. Science Songs: Earth Science Edition This edition includes 16 songs to learn earth science topics such as constellations, weather, high and low pressure systems, fossils, and earthquakes. The easy-to-remember rhythms and lyrics allow you to naturally absorb earth science knowledge. Science Songs: Physics and Chemistry Edition This edition includes 16 songs to learn physics and chemistry topics such as light, sound, heat, electricity, gases, and oxidation. The easy-to-remember rhythms and lyrics allow you to naturally absorb physics and chemistry knowledge. Social Studies Songs: Japanese Geography Edition A CD + text to learn Japanese geography with 16 songs covering topics like prefectures, prefectural capitals, rivers, plains, lakes, climate, peninsulas, and basins. Reading aloud and reciting the text further solidifies memorization. Karaoke versions are included, so you can sing along and enjoy learning Japanese geography. Social Studies Songs: World Geography Edition Let's learn basic knowledge of world geography by singing along. Input world geography knowledge while singing. By listening to the CD while looking at the picture book, it will easily enter your head!! You'll memorize it before you know it!