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 that if we cut the straw shorter the sound will go up higher.

Materials needed:

Straw and scissors

Experiment (procedure):

e.g. Step 1 - Crease one end of the straw into 2-3 centimetres long

Step 2 - Then use the scissors again to cut the end of the straw into a triangle 1.5 cm long

Step 3 - Then put the triangle part of the straw into your mouth and blow.

Step 4 - Next,  cut the other end of the straw 5cm shorter using the scissors.

Step 5 - Blow on the cut end and listen to the sound.

Data (What happened?)

Long: Results:

15cm:	Makes a sound
10cm:	The sound goes higher
5cm:	The sound was at a more higher pitch

Observations:

When the straw was 15cm it made a sound and every time I cut the straw shorter the sound goes up higher.

Conclusion:

I have realised that when we cut the straw shorter while blowing, the sound goes to a higher pitch.