Anisha And Allanah Straw Oboe Experiment

Name: Anisha and Allanah

Title of experiment: Straw oboe experiment

Question:

(What do we want to find out?)

We want to find out that if the straws are smaller why do they have different pitches to each other.Also we want to find out that if we cut big holes in the straws will it still make the sound or will it not work and for me I would love to find out What will happen if the straw gets to small will it work or not.

Hypothesis:  (what do you think will happen?

I think that when we start to cut the holes in the straw it might be a bit too big.Also I think it is going to be really fun and also really noises because this experiment that we are doing is going to be really loud but I hope that you get to do this at home.   

Procedure:

How will we find out?

(Step by step)

first we needed some straws and scissors. then we flatted one edge of the straw with our fingers then we cut one edge of the straw. After that we needed to put the straw in our mouth (the bit we cut ) then we started blowing on the straw and when you do that it makes a really funny and annoying noise after you finished doing that you should start making some little holes on the side of the straw one below the other then put two fingers on top of the holes and start blowing then try taking your fingers on and off and when we finished doing that we started blowing again. Then we tried cutting of little bits of the straw while still blowing the pitch when you are cutting off pieces from the straw it makes a higher and higher pitch every time you cut pieces.That is how we did the straw experiment.

Results:

What actually happened?

When we finished making the straw thing we blew into the straw (the part we cutted) and as we started to blow this kind of annoying wired funny noise came out which really funny to laugh at but as putted a more and more straws onto it,it started to get really hard to blow though but at the end it was really fun.

Conclusions:

What did we learn?

we learnt that when you cut the edges of the straw it makes a noise an annoying and funny noise and when you cut little holes in the side of the straw one below the other (but only two holes) you can make different sound you just need to take your finger on and off and if you cut pieces off it will make a higher pitch every time you cut little pieces off.

Questions:

1. What is producing the sound?

producing sound is when you are blowing into the straw

2. What pitch did we get when all holes were closed, compared to when the holes were

open? When there is no holes in the straw and you start to blow it will go into a high pitch.

3. What does opening or closing a hole in the straw really mean in terms of vibrating an

air column? it means that when the holes are closed or open it means the vibration will do a

4.what happens to the pitch as you cut off pieces off the straw? why?when you cut off pieces of the straw it is higher the pitch is higher