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Crucigrama Sopa de Letras Hoja de Trabajo
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5.9 Vocabulary

Horizontales
a form of kinetic energy that travels through space
a material that light passes through completely
occurs when a ray of light passes from one medium to another but changes direction
Verticales
a material that blocks all light
the sense that uses the eyes to take in light information about an object’s position, shape, and color
a material that some, but not all, light passes through