Funnel Ears Science.

Question: What will happen to the sound if I change the shape of a piece of paper? (e.g. from a flat shape to a funnel shape)

Links to research about Sound:

http://www.thetech.org/exhibits/online/robotzoo/guide/bats_and_echoes.html

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

I think that it will be better if the sound will change. Because of that the sound is normal and clear. Nothing makes a difference.

Materials needed:

A Piece of Paper, tape and tissue or cotton.

Experiment (procedure):

e.g. Step 1 - First hold a flat piece of paper against your ear. Block your other ear with your hand. Get your partner to speak to you. What is the sound like? Can you hear clearly?

Step 2 - Next, roll the piece of paper into a funnel shape. Put the funnel against your ear. Face the funnel towards your partner and listen to them speak. What does it sound like? Can you hear clearly?

Step 3 - Next, face the funnel to the side while your partner speaks to you. Does it make a difference to the sound that you can hear?

Step 4 - Put some cotton balls or tissue paper into the funnel to block one end. Does it make a difference to the sound you hear?

Step 5 - Next, roll the piece of paper up and l

Data (What happened?)

	Shape/object/materials	Results:
1	flat piece of paper	It sounds clear like you are having a conversation with someone. When you put the paper beside your ear it sounds normal and sounds like you are talking to a person, face to face.
2	funnel facing to the front	The sound was clear and it sounds like you turned up the volume. Well it sounds clear and you are able to hear properly . The sound makes no difference Like you are discussing something.
3	funnel facing to the side	It sounds like you are inside someone else head and its like you are whispering.
4	Tissue  blocking the narrow end of the funnel	Sounds like someone is whispering to you. And it sounds like a quiet person talking to you. But you really don't understand.
5	rolled up piece of paper (facing to the front)	When Rave talked into my ear it sound like her voice was bouncing off the paper and into my ears. Like echoing.
	rolled up piece of paper (facing to the side)	It sounds like someone is trying to hear you but they can't because you are too far away. Like whispering.

Observations:

It turns out that some of my hypothesis was right. When the paper was flat and Rave talked . It sounded like she was having a conversation with me. Face to face. When we turned the paper into a funnel shape and we faced it to the front and let your partner speak. It sounded like it was clear and normal. When we had to put the funnel shape facing to the side. It sounded like someone was whispering to you and that it was good for the sound to change.. When we had to roll up the paper facing with a tissue blocking the front of the funnel. It sounded like Raves voice was bouncing off the inside of the paper and traveling into my ears.  The last thing we had to do was roll up the paper and face it to the side. It sounds like someone is trying to hear you but they can't because you are too far away. Like Whispering.

Conclusion:

We have noticed that the sound is louder when it is facing in front of you. With all the experiences of the paper is turns out that it kind of makes a difference to the sound traveling to your ears. But from the different angles that we held the funnel the sound was different. Some sounds sounded like someone was whispering to or shouting to you from across the room.