In this activity for the summer learning journey we had to make 2 xylophones. I created one xylophone using a glass cup and water and the second using paper and tape.
For the first xylophone I used 3 cups. Then I poured different amounts of water into the glass to make different pitches. A pitch is the vibration from the cup which makes the sound.
How much water you have, depends on how much glass can vibrate. Like if the glass of cup is halfway fulled of water it makes a low pitch, but if there is a small amount of glass it make a high pitch sound. Lastly, I tested my xylophone using a pencil, by gently tapping the glass.
For the second and last xylophone I made was used out of paper and tape. To make the xylophone I used 5 sheets of paper. Afterwards I rolled the paper into a tube, then used tape to secure the paper from it opening. I had to cut the tubes smaller and smaller from each other to make the different pitches. Similar to what I did on the first xylophone. If you have a long tube it would most likely make a low pitch sound. If you have a short tube you most like to get a high pitch sound.
Here is me using my xylophones: