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Friday, May 9, 2014

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:

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.


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