英文科普动画STEM动画《阿木科普时间》10 Scienceof Snowflakes
Pollen forming a tiny ice crystal。However，when water freezes，its molecules arrange themselves in a hexagonal pattern.
动画 科普 snowflakes stem动画 动画stem 2025-06-07 00:42 3
Pollen forming a tiny ice crystal。However，when water freezes，its molecules arrange themselves in a hexagonal pattern.
动画 科普 snowflakes stem动画 动画stem 2025-06-07 00:42 3