Science experiment

Science experiment:

Question: What will happen to the sound if I cut the straw shorter? it will make a funny sound that kinda sounds like a fart

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/

https://nz.yahoo.com/

http://www.google.com/?safe=active&ssui=on

Hypothesis: (What do you think will happen?) e.g. I think that there will be no sound when I blow through it

Materials needed: straw and scissors

Experiment (procedure):

e.g. Step 1 - crease straw 2-3cm on one end

Step 2 - cut the creased end of the straw into the  shape of a  triangle. blow air into cut end

Step 3 - listen to the sound

Step 4 - cut it shorter

Step 5 - blow on cut end and listen

Data (What happened?)

straw length---results

long 15cm----- makes sound

10cm------ sound was higher

5cm------- sound was more high pitched.

Observations:

When I cut it it made a funny but when I cut it shorter the sound went higher then I cut it a bit more then the sound went to a high pitch sound

Conclusion:

My Hypothesis was wrong  because it did make sound and every time you cut to straw shorter the sound would make a high pitch sound.