透明、半透明与不透明
Transparent, Translucent & Opaque
探究将不同材料制成的物体放在光束路径上会产生什么效果，认识透明、半透明和不透明材料。
Investigate the effect of placing objects made of different materials in the path of a beam of light, discovering transparent, translucent, and opaque materials
学习证据 / Evidence
- 至少测试六种材料，并将它们分为透明、半透明或不透明。
- 能解释透明（光线清晰穿过）、半透明（部分光线穿过，影像模糊）和不透明（光线无法穿过）。
- 能根据材料的外观预测它能否让光线透过。
- Test at least six materials and classify them as transparent, translucent, or opaque
- Define transparent (light passes through clearly), translucent (some light passes, blurry), opaque (no light passes)
- Predict whether a given material will let light through based on its appearance
评估问题 / Assessment
{{name}}能用小手电筒测试不同材料，并将它们分成光线能穿过的、挡住光线的和介于两者之间的几类吗？
Can {{name}} test different materials with a torch and sort them into ones light goes through, ones that block light, and ones in between?