Funnel ear

Science experiment:

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

http://en.wikipedia.org/wiki/Sound

http://www.sciencekidsathome.com/science_topics/what_is_sound.html

http://whatis.techtarget.com/definition/sound-wave

http://examples.yourdictionary.com/examples/examples-of-sound-energy.html

http://whatissoundenergy.com/

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

The sound will get blurrier every time the hole narrows.

Materials needed:

Paper, Tissue, Tape

Experiment (procedure):

e.g. Step 1 - Hold a flat piece of paper by your ear. Cover your opposite ear with your hand. Get your friend to speak to you. What’s the sound like?

Step 2 - Roll the piece of paper into a funnel shape. Once again, put the funnel against your ear. Face the funnel towards your partner and listen to them speak. What does it sound like?

Step 3 - Face the funnel to the side while your partner speaks to you. Did it make a difference to the sound that you can hear?

Step 4 - Put some cotton balls or tissue paper into the funnel at one end. Is there a difference?

Data (What happened?)

	Shape/object/materials	Results:
1	flat piece of paper	Normal sort sound. No difference at all.
2	funnel facing to the front	Normal sort sound. It sounded a bit clearer than before.
3	funnel facing to the side	The sound got blurrier.
4	cotton ball blocking funnel	Strangely, but true, it remained normal
5	rolled up piece of paper (facing to the front)	It sounded much clearer.
6	rolled up piece of paper (facing to the side)	Sounded more echoey this time.

Observations:    When the paper was flat, it was normal.  When it was a funnel facing forwards, it sounded a wee bit clearer than before. When it was still the funnel facing forwards, it sounded a bit blurrier.

With the cotton inserted, the sound returned to normal. No difference. When the paper was rolled up facing the front, it sounded much clearer. And when it was facing the side, the sound was projected and it sounded echoey.

Conclusion:

In the end our hypothesis was wrong. The sound remained normal. Most of the time there wasn’t much difference.

No sound in space

I have read this text and summarised it.

If you were in space and a spaceship blows up, you would not be able to hear a thing. This is because sound waves are energy that is created by vibrations. If you stretch a rubber band tightly with two fingers and pluck it with the other hand. It would vibrate and create sounds. Sound can be heard anywhere except space. Space is a vacuum and there is no matter in vacuums so there is nothing in space to vibrate. That is why to hear a loud noise in space is impossible.

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Music/Sound

Music, it is amazing. Especially the impact and effect it has on our brain. Did you know that listening to old music can bring back old memories from the past. The hippocampus is the part of the brain that helps you to remember things. You should be careful with the volumes of music. If music is too loud it can damage your hearing or worse lose it!!!

There are all sorts of music. There’s Pop, Jazz, Rap, 70’s & 80’s, Reggae, R&B, Soul, Opera, Blues, Classical and my favorite Hip Hop. Adults probably like listening to music like 70’s & 80’s, Soul, Opera and Jazz. As kids and teenagers like Rap, R&B and Hip Hop.

There are amazingly creative artists around the world. Some of my favorites are Will.i.am, Trey Songz, Jason Derulo, Chris Brown and Usher. There are even band’s like One Direction and A Great Big World.

Music can also change the moods that you are in. For example if you listen to sad music you might begin feeling sad. If you listen to happy  music you might feel happy.  

Sound travels through sound waves. As it enters your ear it travels to your eardrum. Your eardrum vibrates (shakes) and creates signals that your brain understands. That signal enter’s the cochlear. The cochlear pushes it through the cochlear nerve. Finally it goes to the brain which your brain recognises as sound.

A world without sound would be a world without music. So sound is really important. If you want to keep listen to your favorite sounds and music you should take care of you hearing. Hearing is an amazing gift given to us all by the lord.

Space Sound

If you were in space and a spaceship blows up, you would not be able to hear a thing. This is because sound waves are energy that is created by vibrates. If you stretch a rubber band tightly with two finger and pluck it with the other hand. It would vibration and create sounds. Sound can be hear anywhere except space. Space is a vacuum and there are no matter in vacuums so there is nothing in space to vibrate. That is why to hear a thing if a spaceship blows up.

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:

wikipedia

universe today

science kids at home  

dosits

dictionary

merriam

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

I think that as I cut the straw shorter while blowing it, it will sound higher.

Materials needed:

Drinking straw

A pair of scissors

Experiment (procedure):

Step 1 -  Crease straw 2 to 3cm on one end

Step 2 -  Cut creased end into triangle shape and blow air

Step 3 -  Listen to the sound it makes and record

Step 4 - Cut  the straw shorter

Step 5 -  Blow on cut end listen and record

Data (What happened?)

15cm(long)	Makes a deep/low sound
10cm	Sound was higher
5cm	Sound was more higher pitched

Observations:

The table above shows that when the straw was 15cm it was deep and low pitched. As I cut it shorter and made it 10cm long it was higher pitched. Finally when it was 5 cm the pitch was more higher than ever.

Conclusion:

In the end my hypothesis was right. The sound became higher pitched as the straw got shorter. You should try this some time. I hope will be doing more exciting experiments like this during the term.

Life without sound

Imagine living without sound. Life would be difficult. We will not be able to hear anything. Although there are some sounds we hate. There are also some sound’s we like.

If we were deaf, we would not be able to hear cheerful bird’s chirping. We also would not be able to hear the new music hit’s that amazing music artists create. If anyone got kidnaped we would not be able to hear his or her scream or calls for help.

Also if your phone rings you will not be able to hear it, so you will be getting a lot of missed calls. Without sound we would not be able to hear the TV news. So you won’t be updated with what is happening in the world. While driving you will not be able to hear car’s coming by.

The good thing about being deaf is that if people say mean things to you, you would not be able to hear them. Thankfully we would not have to hear annoying people talk too much. We would not have to put up with the loud sound of thunder and rain keeping us awake at night.

Life without sound would be really different. Everyone will have to use sign language or type to communicate. So we will all have to learn sign language. We could still communicate with Facebook and email’s. People would stop using phone’s.

So you should take care of you hearing. If you don’t, you will have to learn sign language.

Immersion Assembly

It was the beginning of the term and we had Immersion Assembly. The whole school entered the hall. We were about to find out what we were all learning about. As we entered the hall, we noticed balloons filled with helium floating around the place.

Most of the teacher where dressed up in crazy costumes like wigs etc. The whole school theme was I like to move it move it. The first item was team 1 and they were learning about Zoo’s equipment that keeps us safe and how it relates to the equipment in our own homes.

Team 2 where learning about how airplanes fly. They also learn about gravity and how air balloons float. There performance was quite funny. Some teacher created planes out of cardboard boxes that they could wear.

Team 3 are learning about light and how it creates colors. They learn about the speed of light and how rainbows are created. First it rains and the water creates paddles. If the sun comes out it reflects light off the water and it creates colors that mix and create rainbows

Team 4 are learning about what things float and sink. They also learn things like the buoyancy of water. They watch video from youtube. Team 5(my team) are learning about sound and how it is created. We also learn about physics as well. I love what we're learning about.