Vocab Crossword
                    
                    
                    
                    
                    
                    
                    
                    
                    
                    
                    
                    
                    
                    
                    
                    
 
 
Down: 1) describes materials that do not let any light pass through them3) the pushing together of a mass so that it occupies less space5) the taking in of the light energy by an object6) describes material that let nearly all the light rays that hit them pass through 7) distance between one point on a wave to the next similar point on a wave8) the bouncing back of a wave off an object or surface Across: 2)  a measure of whether a sound seems high or low, determined by the sound’s frequency 4) bending of a wave caused by the change of speed that occurs when the the wave passes from medium to another9) the number of times a wave makes a complete cycle in a second10) describes materials that let some light rays pass through but scatter some of the other rays
 

 

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