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The bending (or slowing down or speeding up) of light when it travels from one transparent material to the other.Makes things look different.

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The law of reflection states that the incident ray and reflection ray of a beam of light bouncing off a surface is always equal.

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When colors of pigment mix to make a color closer to black.

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When colors of light mix to make a color closer to white.

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The range of wavelengths or frequencies of waves.

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Bottom of a wave.

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The top of a wave

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The distance between the crest and the trough.

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The space in between waves,could be measured from crest to crest or trough to trough.

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A fancy way of saying 3d triangle,or pyramid,but instead of going straight up,its like taking a 2d triangle and stretching it out.

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Part of the electromagnetic spectrum that we can see.

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Something that does not let any light through.

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When light can somewhat get through an object.

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Something that lets all light to go through it.

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The distance of light after traveling for one year.

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A source of light that is good at producing light.A good source of light is the sun,but a bad source would be a nearly broken flashlight.

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When a normal light source hits something reflective,which then reflects it into another direction.

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Natural light that animals make with certain enzymes in their bodies.

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The metal in an incandescent light bulb that creates the light from the electrical energy.

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The energy in atomic level actions,like atoms fusing or nukes detonating.

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All radiation,wave,or light energy in the universe.Like the radiation produced from the sun or a flashlight's light.

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The energy of all movement,like our the planets in the universe orbiting or when a bird is flying.

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In all the sound ever created,like from your speakers or a tree falling.

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All heat in the world,like fire or hot water.

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Electrical things,like the things we use to power our electronic devices like our computers and lights.

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The energy behind chemical reactions and things similar to it.Like the chemical reactions in an oven that produces fire.

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The study of sight and light.

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A method scientists use to create and execute experiments.

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Data that is mostly describing things,like what color did the solution turn when we added sulfur dioxide.

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Data that has to do with numbers,like what percent of people run away from a bear.