Page 55 - Benchmark-4.1
P. 55

Listening to Sound










                                                               Sounds can be high or low. Look at the




                                                         bells. The big bell makes a low sound.



                                                         The small bell makes a high sound.




                                                         When you sing, you can make



                                                         a low sound or a high sound.






                  Sounds are made when things move




           back and forth
           back and forth very fast.




            adj. moving backward and then forward






                                                                                                                                                Unit 2 | Listening to Sound
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