科学 · Waves, 光 与 声音 · 8

您的孩子在 8 岁左右正在学习科学中的Waves, 光 与 声音内容，并逐步掌握相关知识与技能。

Your child is discovering how sound works — understanding that sounds are vibrations that travel through air, water, and solids, and exploring how pitch and volume relate to the strength of these vibrations.