Look At the Pretty Sounds!

This week was a pretty exciting week in the world of science.  We have been studying how sound works, and our voice works. We have had an opera singer come in and show us how her voice works.

We have been discovering how birds song and how that compares to how our own voicebox operates. This week we wanted to see what sound looks like. We created our own tonoscopes in science class with Lisa. We used a large yogurt cup, a balloon, a needlepoint loom, construction paper and tape. We cut a hole in the side of the yogurt cup, and put rolls of paper into them. We stretch the rubber from the balloons over the needle point loom. We then pushed it over the top of the yogurt jar and added a little salt. When we spoke into the tubes, it made beautiful pictures on the top of the rubber. It was pretty amazing to see what patterns went with what sound.

We also were able to see what would happen if we hooked up music to a plate with sand on it. We could see how the sand was jumping around with different tones. We also had the chance to see which frequency would make the sand or salt jump highest. We discovered that this was called the Resonant Frequency.  In addition we attached a resonator to different materials and found which created the best sound.

We discovered a ton of new things about sound this week.

Snowball fight with paper balls. Not trying to hit each other, but trying to get as many paper balls to the other teams side.

Have a fantastic break!