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To be successful in this lesson you; Describe these sound waves: Must: use the term vibration to describe how sounds are produced Should: describe volume or pitch by looking at a sound wave Could: explain why sound travels faster in solids and liquids than gases Is human hearing better or worse How are sounds produced? ` than an animal’s? This sound is getting Eg. quieter I can tell because the height of the wave is smaller This sound is getting ______________ I can tell because ________________________ This sound is getting ________and ______ I can tell because ________________________ Key Words: sound wave higher pitched This sound is getting vibration louder lower pitched quieter amplitude particles ________and______ frequency I can tell because _____________________ Why do sound travels faster in solids and liquids than in gases? Give examples to help explain your answer.