Science experiment template

Hypothesis: (What do you think will happen?) e.g. I think that….

The sound will become higher as you cut it shorter.

Materials needed:

Straw and Scissors.

Experiment (procedure):

e.g. Step 1 - Crease straw 2-3cm from one end

Step 2 - Cut crease straw into triangle shape. blow air into cut end

Step 3 - Listen to the sound it makes.

Step 4 - Cut the straw shorter to see what sound it makes.

Step 5 -Blow on cut end. Listen.

Data (What happened?)

straw length	What happened?
15cm	The sound was a deeper sound.
9cm	The sound became higher just between.
3cm	the sound was a higher pitched.

Observations:

Sound was higher.

Conclusion:

The longer the straw the lower the pitch.

The shorter the straw the more higher pitched.