科学 · 物质与材料 · 10

您的孩子在 10 岁左右正在学习科学中的物质与材料内容，并逐步掌握相关知识与技能。

Your child is exploring the fundamental nature of matter — learning that everything is made of tiny particles they can't see, and discovering that matter is conserved even when it changes form through heating, cooling, or mixing.