Noise Plollution (blue)

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Ppt prepared by my students at Newlands School, Argentina

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  • Noise Plollution (blue)

    1. 1. By: Martina D’Orazio, María Sol Scarpa, Abril Stokle. 5°Blue
    2. 2.  Travelling sounds: Sound waves travel more slowly than do light waves. That is why we see lighting before thunder is heard. Sounds waves travel faster through solids than through liquids, and faster at higher temperatures.
    3. 3.  When an object is allowed to vibrate freely the sound made will continue for longer. Making sounds
    4. 4. The outer ear acts funnel. It directs sound waves to the eardrum. The sounds waves make the eardrum vibrate. In the middle ear the vibrations are transmitted along three bones called hammer, the anvil and the stirrup. Hearing sounds:
    5. 5.  We shouldn’t listen to music so loud.  We have to protect our body of the causes of Noise Pollution.  The sounds of cars affect and contaminate us and the environment.  The horn of firefighter cars cause Noise Pollution.
    6. 6. THANKS FOR LISTENING!!!!BY: Marti Dora, Sol S. and Abril S.

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