1) Light Energy a) Energy we can see; travels in a straight line. b) Energy of motion c) Energy of electrons flowing 2) Transmit a) To pass through  b) To be taken in or blocked 3) Absorb a) To be taken in or blocked b) To pass through 4) Lens a) A piece of glass or plastic that causes light to be refracted. b) A triagular shaped piece of plastic or glass that separates white light into different colors 5) Prism a) A triagular shaped piece of plastic or glass that separates white light into different colors b) A piece of glass or plastic that causes light to be refracted. 6) Reflection a) When light hits a smooth shiny surface and light bounces off b) When light hits a new medium and it slightly bends; causes images to appear different 7) Refraction a) When light hits a smooth shiny surface and light bounces off b) When light hits a new medium and it slightly bends; causes images to appear different 8) Transparent a) A material that allows ALL of the light through b) A material that allows SOME of the light through c) A material that allows NONE of the light through 9) Translucent a) A material that allows ALL of the light through b) A material that allows SOME of the light through c) A material that allows NONE of the light through 10) Opaque a) A material that allows ALL of the light through b) A material that allows SOME of the light through c) A material that allows NONE of the light through 11) Medium a) A solid; liquid or gas that allows energy to travel b) A shirt size c) Neither

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