On-Line Hearing Test.

Here is a site well-worth a look. It has a simple on-line hearing test and a neat little animation how your ear works. Try it out.

Australian Maths Competition- WARM-UP's

The Australian Maths Competition is looming. I will hand out some practice examples, but if you want MORE.....visit their website to really get some practice in. For those who havent signed up.....GIVE IT A GO!!! It wont hurt and more often than not people get a pleasant surprise!!!

How is sound MADE? (Part2)

Once we have vibrations making waves.......what happens when they go inside your ears???. See if you find the answer here

How is sound MADE (Part1)?

There are two parts of this question. Firstly we know sound is made by vibrations. Follow this link and you can learn something about waves. If you really 'get into it', follow the links and see where you end up!
This link might be helpful for your investigation.

Conducting an investigation about SOUND

Year 7's have recently spent two sessions designing a series of questions that will form their investigation around SOUND. Students worked in groups of 2-3 and looked at developing WHO, WHEN,
WHERE, WHY, WHAT, & HOW questions about sound. They had to listen to each others questions and try to 'make the questions better'.
Students will get 3 chances to improve their questions.
Have look at the questions and see if you can make any questions 'better' by adding a comment. Any websites or on-line resources anyone finds can be added to this blog for students to use. The questions were:

7A
ASH, EVEE & JAZZ
Who discovered sound?
How does sound get made?
When did sound get discovered?
Where does sound end?
Why is there sound?
What is sound?

CHRIS & STEVEN
How do bats and dolphins use echolocation?
Who invented SONAR?
Why do some animals use echolocation to find their food?
Where was the first place SONAR was used?
When was echolocation discovered?
What does SONAR stand for?

NATALIE, LOUISA, EMILY
How do ears work?
Why does helium, when inhaled, change the tone of your voice?
Who invented the vibrating voice machine?
Where does thunder come from and why is it so loud?
When do unborn babies develop sound?
What happens when you break the sound barrier?

DECLAN, OSCAR, JORDAN
How do we pick up more than one sound frequency at a time?
Who discovered sound waves?
Why is the speed of light faster than the speed of sound?
Where is the loudest place on earth?
When was the first music invented?
What are the different types of sound frequencies

JAIME & LOUISE
How come dogs can hear better than humans?
Who proved dogs can hear sounds that we cant?
Why do dogs need good hearing?
Where is the dogs hearing sense?
When dogs bark is the sound like talking is to humans?
What dogs hear the best?

GEORGIA & CHAISE
How does sound echo in tunnels and empty rooms?
Who decided to call sound sound?
Why do people from different countries have different accents?
Where do thunder and lightning start?
What makes the sound when you blow over a bottle
When does a storm start?

NICK, JAMES & DOUGLAS
How can sound travel through a non-continuous object?
Who was the first person to discover ecolocation?
Why do we hear sound?
Where was sound first used as a weapon?
When was the first time a man-made object went into supersonic speed?
What part of an amplifying object transmits sound?

GEORGIA & PHEOBE
How was sound invented and why?
Who invented talking?
Why does sound echo in a large area?
Where was sound invented?
When was sound invented?
What does sound sound like?

EMILY,& SHANAE
How is sound made?
Who invented sound?
Why does peoples voice sound different to others?
Where does sound go after it has been heard?
When was sound and radar discovered?
What is sound?

JOSH, JACK, MICHEAL......

7B
Najib & Zander
How is sound generated?
Who made up the word sound?
Why is sound sent out in vibrations?
Where is the noisiest place in the world?
When does sound go to high pitch for us to hear

Gemma & Erin
How fast does sound travel?
Who found out that sound is made by vibrartions?
Why is sound so compatible with air?
Where does sound echo the most?
When was sound fist discovered, and a theory developed?
What makes your ear emit sound as well as absorb it?

Nathan & Kurt
How is sound made?
What is it?
When was it found?
Why does it exist?
Where does it come from?

Andrew & Joe
How is sound generated?
Who made up the word sound?
Where is the noisiest place in the world?
When does sound become to a high pitch to hear?
What is the speed of sound?

Lauren, Lisa, Cathy
How fast can sound travel?
Who gave sound the name sound?
Why do our ears only hear to a certain extent?
Where does sound end after travelling a certain distance?
When was sound found?

Sarah & Ash
How do we hear sound?
Who made up the word sound?
Why does sound travel?
Where can't you hear sound?
When was sound first heard?
What does 'sound' sound like?

Rose, Laura & Demi
How do dolphins make sound?
Who is the leader of the dolphins?
Why do dolphins make sound?
Where does the sound come from on a dolphin?
When did someone find out the dolphins make sounds?
What can dolphins hear?

Remedy and Tayla
How do you make sound?
Who discovered sound?
Why does sound come through our ears?
Where does sound come from?
When was sound discovered?
What does sound mean?

Dylan & Jackson
How is sound 'loud'
Who uses sound?
Why does sound travel through air?
Where does sound come from?
When does sound become so high that we cant hear it?
What makes sound?

Connor and Tyson
How does sound travel?
Who found out that sounds make tiny vibrations?
Why do you hear sound?
Where was sound found?
When was sound found?
What are sound waves?