Straw Oboe Science experiment template

Science experiment:

Question: What will happen to the sound if I cut the straw shorter and blow through it?

Links to research about Sound:

http://www.universetoday.com/61166/what-is-sound/

http://www.sciencekidsathome.com/science_topics/what_is_sound.html

https://www.youtube.com/watch?v=oElbMctAVlY&safe=active

Hypothesis: (What do you think will happen?) e.g. I think that….

I think the pitch will go higher and higher each time you cut it.

Materials needed:

Scissors and a drink straw

Experiment (procedure):

e.g. Step 1 -

Crease the straw 2-3 cm on one end

Step 2 -

Cut a triangle shape on creased end. blow in cut end.

Step 3 -

Listen to the sound and record

Step 4 -

Cut the straw shorter

Step 5 -

Listen to the sound and record

Data (What happened?)

Straw Length	Sound
15cm	The pitch was annoying.
10cm	The pitch went higher and more annoying.
5cm	The pitch was really high and really annoying.

Observations:

When the straw was 15cm the pitch was annoying.

When the straw was 10cm the went higher and the sound got more annoying.

When the Straw was 5cm the pitch got even more higher and much more annoying.

Conclusion:

I have noticed when you cut the straw shorter the pitch goes higher.