Friday, May 9, 2014

Science Experiment

Science experiment:

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

Links to research about 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

sound was higher

sound was high pitched

Long 15cm: When we first received our straws. The sound was very low
10cm:  The sound got higher.
5cm:  The was High Pitched.

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

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