I read the book Sound: Loud, Soft, High, Low Natalie M. Rosinsky. Boys and girls, you have learned that sound is created through vibrations and when the pitch changes the vibration changes. Think about what you have learned about vibrations, pitch, and volume. Why do you think the Oobleck danced? The natural world is awash in sound. This is even more true of the man-made world. Whenever an object sends out vibrations you can hear, that is, between 20 and 20,000 cycles per second, it produces sound energy. The vibrations can be carried through air, water or solid materials. Mechanical, electrical, or other forms of energy make objects 4)Repeat these steps using different solids and then record through which solid the 'tick tock' sound was loudest. In other words which solid let the 'tick tock' sound travel through best. Bright ideas! Make up a scale (1-4) of sound intensities, to help you record your results! 1. Very soft. 2. Soft. 3. Loud. 4. Very Loud. Energy Power Series (8) Take Classic (4) Subwoofers (8) PS-500 Series (1) EAS series (4) Accessories (0) PRODUCTS TYPE. Home Theater Systems (17) Tower Speakers (7) Soundbars (6) Bookshelf Speakers (6) Center Speakers (5) Surround Speakers (7) Subwoofers (8) Multimedia Systems (1) A higher level of energy is required hair cells during periods of intense exposure to loud sounds. The consequent increased consumption of oxygen generates raised levels of free radicals in the cochlea. The ear