The best Expo projects are not always complicated, but imaginative and well executed A good Expo project is often:
Inventing Homemade Instruments with Math and Measurement Welcome to Phil and Sarah's page on making homemade musical instruments — where common household items are transformed into musical marvels using math and measurement!
Specifically, we'll cover how musical instruments vibrate in a series of fractions called the harmonic seriesexplain how to design your own homemade musical instruments by measuring length and liquid volumeand demonstrate how to play rhythmic patterns in a homemade percussion band.
The garden hose plays the harmonic series. Harmonic Series Instruments vibrate in fractions: Many instruments produce sound by vibrating a column of air inside a tube, e.
As waves of air move inside a tube, they vibrate in wholes, halves, thirds, fourths, and fifths — fractions in the harmonic series. This series of harmonics can be played on a garden hose trumpet, a Whirly-tube, sports bottle straw, as well as any homemade flute or bugle.
Phil's daughter, Sarah, demonstrates exactly how this vibrating column of air looks and sounds with her multimedia activity on the harmonic series. She also shows how these fractions, or harmonics, are produced with string instruments such as a violin or a guitar.
In addition, you will see the scientific properties for each wave, and hear the sounds of each harmonic on a violin stringpan pipes closed-end tubeand with her trumpet open-end tube. While you're there, be sure to check out the bugle calls!
Taking it a step further, students can change the length of this vibrating column of air by varying the length of a tube. As a tube gets shorter, it produces a higher pitch or frequency.
This happens because sound waves can travel, or vibrate, a shorter distance faster than a longer distance. To see and hear how this works, check out Phil and Sarah's instrument making activities on didgeritubes, panpipes, melodic tube drums, and musical fraction tubes.
These four activities allow students to change pitch by changing the length of a vibrating column of air inside a tube.A research question would set boundaries for the area to be explored and the answers that your research need to answer and hypothesis is a scientific way in which you assume an answer to the research question or its sub-components and then test if your assumption was correct.
An IEP team's introduction to functional behavioral assessment and behavior intervention plans. The object of the IDEA is not to arbitrarily mandate change, but to provide an environment conducive to the education of all students, including those with disabilities.
Inventing Homemade Instruments with Math and Measurement.
Welcome to Phil and Sarah's page on making homemade musical instruments — where common household items are transformed into musical marvels using math and measurement! Problem Statement and Hypothesis 3/26/ Now that you know your independent and dependent variable, the rest of the science fair project is a piece of cake.
The undreamt-of breakthrough of molecular biology has made the problem of the origin of life a greater riddle than it was before: we have acquired new and deeper problems.
Science Fair Project Ideas. Below is a list of great ideas for potential science fair projects. Pick something you're interested in and try it out for size.