U 13.5 L4 Lens Diagram Worksheet.pdf (application/pdf Object) Polar bear refraction.jpg. Hewitt Blue Sky. Blue Sky/Red Sunset. Blue Sky - Why is the Sky Blue? On a clear sunny day, the sky above us looks bright blue.
In the evening, the sunset puts on a brilliant show of reds, pinks and oranges. Why is the sky blue? Refraction and Lenses. Snells Law Worksheet. Plane mirror reflection. Curved Mirror Ray Diagrams.