Friday, May 9, 2014

Grace-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….
The sound will go up
Materials needed:
Straws & Scissors.
Experiment (procedure):
e.g. Step 1 - Crease straw

Step 2 - Cut crease into triangle shape with scissors. Blow air into cut end

Step 3 - Listen to the sound it makes, then record it.

Step 4 - Cut the straw shorter

Step 5 - Blow on cut end, then record it.

Data (What happened?)
Makes a sound
The sound went higher
The sound went higher at 5cm than at 10cm

First we each got a straw. Then we cut one end of the straw into a triangle form. At 15cm makes a little sound. Next at 10cm then sound went higher. The final time I had cut the straw the sound went higher at 5cm than at 10cm.


My hypothesis was right because the sound went a little higher every time I cut the straw shorter.

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