____: Something that doesn't let light pass through, like a wall. ____ Ray: The light ray that bounces off a surface. ____ Ray: The light ray that bends when it passes from one material into another. ____: the colors of the rainbow: Red, Orange, Yellow, Green, Blue, Indigo, Violet. ____: Allowing some light to pass through but not enough to see clearly through it. ____: The passing of light or energy through a material. ____: Clear and see-through, allowing light to pass through easily. ____: The length of one complete wave, from one peak to the next.

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