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Optical Phenomena It’s time for a scavenger hunt using your cell phone cameras. Ready? Set? Shoot! Phenomena to Look For reflection refraction shadows diffraction opacity Here are some samples and reminders of the phenomena Refraction: bending of light as it changes media – air to water to air, for example. Here are some samples and reminders of the phenomena Reflection: light bouncing off of a surface. It can be specular (shiny, smooth, and forming a discernible image) or diffuse (rough, matte, may have glare). Here are some samples and reminders of the phenomena Shadows: Areas formed where light is partially or completely blocked by an object. Here are some samples and reminders of the phenomena Opacity: The ability for light to pass through a material – transparent, translucent, opaque. Here are some samples and reminders of the phenomena Mirrors – smooth reflective surfaces than can be flat (plane), concave or convex. Here are some samples and reminders of the phenomena Diffraction – the bending of light as it passes through slits or reflects off thin films. Here are some samples and reminders of the phenomena Lens – transparent material that refracts light to form an image. Here you see a real, inverted, reduced image. The liquid and the shape of the glass create a biconvex lens. Your goal now… • Is to use your cell phone camera to capture as many optical phenomena on the scavenger hunt list as possible in 20 minutes. • You should not disrupt any classes. Your paper acts as a pass. You must return on time. • You will need to show the images when you return, for a grade. Keep track of the photo number (#1 for your first image, for example). • Your teacher will not look at all the images, only a select few so be sure your description is a good one.