Science Experiment

Science experiment:

Question: What will happen to the sound if I cut the straw shorter?

Links to research about Sound:

e.g. http://www.physicsclassroom.com/class/sound  

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

http://en.wikipedia.org/wiki/Sound

Hypothesis: (What do you think will happen?) e.g. I think that the sound will get higher.

Materials needed:

Scissors, Myself, Straw.

Experiment (procedure):

e.g. Step 1 - Creased the straw 2-3cm.

Step 2 - Then using the scissors again cut the end of the straw into a triangle.

Step 3 - Put the triangle shape into your mouth and blow,

Step 4 - Cut the straw shorter.

Step 5 - Blow the straw on the cut end. Then listen to what the sound makes.

Data (What happened?) Observation

Length:                                           Results:

Long 15cm	makes a sound
10cm	sound was higher
5cm	sound was high pitched

Observation

Long 15cm: When we first received our straws. The sound was very low

10cm:  The sound got higher.

5cm:  The was High Pitched.

Conclusion:

I have realised that when you cut the straw shorter. The sound will get Higher and higher every moment you cut it.