科学 · Waves, 光 与 声音 · 7
您的孩子在 7 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 light behaves — learning that sunlight can be dangerous to eyes, understanding how shadows form when light is blocked, and observing how different surfaces reflect light.