This document contains information about the properties of light, including that light travels much faster than sound, is reflected by shiny surfaces, and can be absorbed, reflected, or refracted when hitting different materials. When light passes from one medium to another, it may refract according to Snell's law, with the wave bending toward the normal in the slower medium and dispersing into a spectrum in a prism.

1. Light concept mapFor the teacher – first slide shows the whole concept map the second slide shows a developing map to be used in teaching the ideas contained in the map.

2. 1. Image same size as object.Properties of plane mirror image are::2. Image is upright (not inverted).Angle of incidence = angle of reflection3. Image appears as far behind mirror as it is in front.Law of reflectionReflectsRaysShadow300 000 000 m/s343 m/sOn plane shiny surface it:Light is represented by:Speed is:Much fast than sound which isObject causes:1AbsorbedOpaqueLuminousexampleSunLightWhen it hits a surface it can beObjects make or reflect light calledSubstance is:ReflectedTransparentNon-LuminousMoonexample2When is passes into a new medium it is:Object not clear:TranslucentCaused byChange in wave speedRefractedIn a prism:Law states:Waves are dispersed in to a spectrum.Wave bends towards the normal in the slower medium.

3. 1. Image same size as object.Properties of plane mirror image are::2. Image is upright (not inverted).Angle of incidence = angle of reflection3. Image appears as far behind mirror as it is in front.Law of reflectionReflectsRaysShadow300 000 000 m/s343 m/sOn plane shiny surface it:Light is represented by:Speed is:Much fast than sound which isObject causes:1AbsorbedOpaqueLuminousexampleSunLightWhen it hits a surface it can beObjects make or reflect light calledSubstance is:ReflectedTransparentNon-LuminousMoonexample2When is passes into a new medium it is:Object not clear:TranslucentCaused byChange in wave speedRefractedIn a prism:Law states:Waves are dispersed in to a spectrum.Wave bends towards the normal in the slower medium.