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This resource uses animations and interactive activities to explain to pupils how sound can travel through all materials not just air and that some materials are better than others at conducting sound. The pupil's understanding can be tested with the follow up investigation into what material insulates sound best.
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www.ngfl-cymru.org.uk/sound_travels_through_materials
www.ngfl-cymru.org.uk/sound_travels_through_materials
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sound travels through mediums. try to think of it as a vibration. the vibration is transferred through a medium such as air, water or solid. the more close together the molecules of the medium is, the better for the sound "vibration"...
http://answers.yahoo.com/question/index?qid=20080227112...
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3. Students will discover which materials sound will travel through. Materials: small ticking alarm clock paper bag glass jar W/lid plastic bag with water in it shoebox w/ newspaper in it metal can science exploration books worksheets w/ chart of materials;
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www.lessonplanspage.com/ScienceHowSoundTravelsThroughOb...
www.lessonplanspage.com/ScienceHowSoundTravelsThroughObjects23.htm
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Sound is a regular mechanical vibration that travels through matter as a waveform. Although it is commonly associated in air, sound will readily travel through many materials, such as water and steel. Some insulating materials ... A jet plane traveling at the speed of sound would be moving at about 680 mph at sea level.
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www.school-for-champions.com/science/sound.htm
www.school-for-champions.com/science/sound.htm
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The Sound Site: exploring the science and art of sound.
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www.smm.org/sound/
www.smm.org/sound/
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Sound is capable of traveling through many materials, but it travels faster through some more than it does through the air. If sound waves hit a solid wall, they will bounce off the wall and you will hear an echo.
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www.light-science.com/echosound.html
www.light-science.com/echosound.html
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Through simple experimentation, students will learn how sound waves function and travel. ... Imagine what happens when you drop a stone into a pool of water. Waves ripple out from the spot where the stone entered the water. The way waves move across the water is similar to how sound waves travel through the air.
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www.teachervision.fen.com/vibration/lesson-plan/342.htm...
www.teachervision.fen.com/vibration/lesson-plan/342.html
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Temperature is an important characteristic in determining the speed of sound. Lowering the temperature of whatever the sound is traveling through makes the motion of the particles more sluggish. Sound travels slower at lower temperatures and faster at higher temperatures.
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www.thesolutionsite.com/lpnew/lesson/814/buckhannonupsh...
www.thesolutionsite.com/lpnew/lesson/814/buckhannonupshurhsB1.htm
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Sounds travels faster through denser materials than through less dense materials. Water is denser than air; therefore sound travels about five times faster through water than through air. Sound is the traveling of vibrations through waves.
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www.educationaltoyfactory.com/watersounds.htm
www.educationaltoyfactory.com/watersounds.htm
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