Harnessing children's natural curiosity about the world, this engaging series introduces kids to key science concepts through a simple question-and-answer format. The mechanics of sunlight, darkness, vibrations, and sound are simplified for young readers in this illuminating reference.
發表於2025-01-22
Light and Sound 2025 pdf epub mobi 電子書 下載
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Light and Sound 2025 pdf epub mobi 電子書 下載