What Can I hear??

There are many sounds around us. Teenagers nowadays enjoy listening to Music because it calms people down. Around our community we hear a lot of things. A lot of cars whizzing by, yelling and also announcements.

At home the most annoying sound is my brother, cause he always got to shout, cry, laugh loud and do annoying stuff!! Especially when he talks, he talks forever and gets in trouble. And at school I hate the sounds of growling.

Also the sound of Traffic Jams. Why? Well a lot of horns going by. And also traffic going very slowly. Ugh that is truly annoying right. Trying to get through to school and work.

There are so many sounds we can here around our environment and community. Such as sounds like lots of talking, kids crying and also yelling. Around our community, we hear a lot of things. Like today I had heard that the Sydney Roosters are going to play against the West Tigers. WOAH!!

Science Experiment

Science experiment:

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

Links to research about Sound:

e.g. http://www.physicsclassroom.com/class/sound  

http://www.universetoday.com/61166/what-is-sound/

http://en.wikipedia.org/wiki/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
10cm	sound was higher
5cm	sound was high pitched

Observation

Long 15cm: When we first received our straws. The sound was very low

10cm:  The sound got higher.

5cm:  The was High Pitched.

Conclusion:

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