Straw Oboe sound experiment.

Hypothesis: (What do you think will happen?) e.g. I think that the sound will go higher.

Materials needed: straw, scissors

Experiment (procedure):

e.g. Step 1 - Get straw and Scissors.

Step 2 - Crease 2-3 cm on one end of the straw.

Step 3 - Cut a triangle shape on the creased end

Step 4 - Blow on the straw through the triangle shape, listen to the sound

Step 5 - Cut shorter and see what happens.

Data (What happened?)

straw length	Results
15cm	Low
10cm	It went higher
5cm	didn’t have time

Observations:

I noticed that the sound was higher when the straw was cut shorter.

Conclusion:

My Hypothesis was right because my data and Observation was very true.