21. Exploring Pitch And Volume

... to frequency. Changing the number of vibrations per second changes the pitch. The pitch that a particular tuning fork generates depends on the length of its prongs. Each fork is stamped with the note it ...

22. Musical Bottles

Using two different media (air and water) in glass bottles shows how the speed of the vibrations affects pitch. Students will determine which results in a higher pitch: a full bottle or an empty bottle. ...

23. Whirly Tubes

... and faster, the whirling end's pressure is lowered, the air moves faster through the tube to fill the low air pressure area, the vibrations of the air molecules are faster as they hit the ridges, and the ...

24. Weight A Minute

...  Introduction Adding a weight to a hanging elastic band increases its tension. This in turn will increase the pitch, resulting in a higher sound. A looser band has more give, slowing down the vibrations ...

25. "Whacky" Music

In this activity, the students "whack" tubes of different lengths to produce various pitches. Introduction Music can be defined as: The art of producing significant arrangements of sounds, usually ...

26. Homemade Kazoo

Students create their own homemade kazoos to illustrate that sound vibrations can be seen, heard, felt, and amplified. Introduction When you hum into the kazoo, vibrations from your vocal cords travel ...

27. Rainsticks

Students discover how to simulate the sound of real rain by making an ancient instrument called a rainstick. Introduction Traditional rainsticks are thought to originate in Latin America and the ...

28. Hummers

In this activity, students explore how sound production was used by ancient cultures as a communication tool over long distances. Introduction The bullroarer is an ancient musical instrument used ...

29. Bullfrog Caller

In this activity, students use their knowledge of vibrations and sound to mimic the sound of a bullfrog. Introduction The "Cuica" (pronounced "kweeka") is a Brazilian percussion instrument. Inside ...

30. Spoons on Strings

... in a solid are packed much closer together (more densely), vibrations are passed along much more easily from one molecule to the next. As a result, sound waves travel faster through solids (such as a length ...

31. Sound

Sound is all about vibrations. The source of the sound vibrates, bumping into the air molecules nearby, which in turn bump into their neighbours and so forth. This results in a wave of vibrations through ...

32. Sound

... (including notebook trivia prizes) BEFORE doing your M&T. Once you have 30 kids each with a noisemaking M&T in their hands, there's no going back. •Sound = Vibrations: good way to intro the topic. It's ...