Friday, May 9, 2014

Sarona science experiment

Science experiment:

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

Links to research about Sound:

Hypothesis: (What do you think will happen?) e.g. I think that It will make different sounds each time you would cut it shorter.

Materials needed:
Scissors and Straw.
Experiment (procedure):
e.g. Step 1 -
Get your straw and flatten the end 2-3cm to make it sharp.
Step 2-
cut the end of your straw into a triangle shape about 1.5cm long.
Step 3 -
Put the triangle shape into your mouth and blow and you will hear a sound from it.
Step 4 -
Put your lips just beyond the triangle, and squash the straw gently with your lips.
Step 5 -
Get your straw and try cutting the ends of it and blow on to it. Then you may hear a buzzy noise as you blow your straw and cut it.

Data (What happened?)
Long: 15             (When I Blew into it had a high sound)
Shorter:10cm     (When i cut it I blew on to it again and it made a High sound)
Shorter:5cm       (I cut the straw again and it went Higher  than before)
Shorter:2cm       (This last time I cut it and it went really Loud)

It sounds like a buzzy Noise Like a big bee flying around.

When i cut the straw shorter it went to a higher note.

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