粒子模型
The Particle Model
运用粒子模型解释固体、液体和气体的性质，包括它们在排列、运动和间距上的差异，并应用该模型解释密度、可压缩性以及水的反常膨胀。
Use the particle model to explain the properties of solids, liquids, and gases — including differences in arrangement, movement, and spacing — and apply the model to explain density, compressibility, and the anomalous expansion of water
学习证据 / Evidence
- 画出固体、液体和气体的粒子示意图，并正确表示它们的排列和间距。
- 解释为什么气体可被压缩，而液体和固体不可被压缩。
- 利用水的反常膨胀解释为什么冰能浮在水面上。
- 运用粒子间距解释为什么气体的密度远小于固体和液体。
- Draws particle diagrams for solids, liquids, and gases showing correct arrangement and spacing
- Explains why gases are compressible but liquids and solids are not
- Explains why ice floats on water using the anomalous expansion of water
- Uses particle spacing to explain why gases are much less dense than solids and liquids
评估问题 / Assessment
如果{{name}}被问到为什么气球可以被压瘪，而装满液体的水瓶却不行，他们能利用粒子概念解释气体和液体之间的区别吗？
If {{name}} was asked why you can squash a balloon but not a water bottle full of liquid, could they explain using the idea of particles what's different about gases and liquids?