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1 light  always travels in a straight line
2 light  can be refleted on smooth shiny and flat surfaces
3 light that is not reflected is adsorbed
4light reflects on rough and bumpy patterns in diffrent ways
5 light bends as it passes through water

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1 sound travels
2sound can be reflected
3 sound can be adsorbed
4 sound can be modified
sound is caused by vibraions

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thanks for looking at my padle

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I learned that sound is caused by vibrations, because when I hit it, it vibrates.

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Do you know what lightsomething we need. well We NEED LIGHT if we don't have light we cant do anything here are some things about light.

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Do you know why we need sound well if you don't then you need to know. we need sound to do things and be safe like if your driving and someone honks you don't know and their could be a accident or for other needs so we need sound this shows the properties of sound

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Could you imagine a world no sound  it would be hard to live and it would be to silent and no one could communicate unless they use emails or hand jesters. A world without sound would not be nice and hard to live in.

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What would the world do without light? The world   can't do anything without light you can't see anything or do anything so theres no point to live

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sound being modified

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sound being made by vibrations

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tells you what light is