Spend,share,save

This is a presentation about spend, share and save. It is all about how we can save and spend or share money. This presentation also explains is it important to save and why. The presentation also has three videos that will explain why it is important to save.

$20 and $200 Tala

For inquiry we had to make an animation about what we would spend $20 and $200 tala on. Here is my animation about what I would spend $20 and $200 dollars on. Hope you enjoy.

Spend, Share, Save

Smart Values

This is something we did in maths. We had to explain the three p's but doing it online. It was all about being kind to people online, and being the same. And also show what partnership,  participation, protection is like online.

Changing Sounds

Changing Sounds

Sound is a form of energy. For sound to be produced vibrations must be set up by a source.  This is done by hitting (drum), blowing (recorder), stroking (sand paper on wood) and electrical (loudspeaker).

The vibrations travel through a solid liquid or gas and reach our ears where it can be heard.  If the vibrations have a lot of energy then they are loud.  If they have little energy then the sound is quiet.  Sometimes the vibrations can be seen or felt on the skin.

In air, sound travels at 1,160 km per hour, but speeds up in water to 5, 400km per hour.  Things which travel faster than sound are called supersonic.  The Concorde can travel faster than sound.

Dolphins communicate with each other under the sea.  The sound can travel for hundreds of miles, much further than in air.  Sound travels even more quickly through a solid metal than through the air or water.  Standing near a railway line, a humming from the rails can be heard several minutes before a train itself can be heard directly.  

Sound travels through solids and liquids as well as air.  Sound cannot travel through a vacuum.  Sound travels at different speeds in different substances.  This is because different substances are made up of particles in different ways.  The sound pushes the particles and as it travels it moves from one particle to another.  In a gas the particles are far apart, so some of the sound energy is lost when trying to push one particle into another one. Therefore the speed of sound is slow so it will not travel as fast as it does in substances where the particles are closer together.

Pitch is the highness or lowness of a sound.  A high pitch is caused by short vibrations and a low pitch is caused by long vibrations.

The pitch of a note produced by a guitar depends on the length, thickness and tension of the string.  A shorter, thinner, tighter string produces a high pitch and a longer, thicker, looser string produces a low pitch. On a guitar the strings can be shortened by putting a finger on the fret board.

In a wind instrument a column of air is set vibrating and the pitch depends on the length of the column.  A long column makes a low pitch and a short column makes a high pitch.

The loudness (volume) of the sound depends on the amount of energy the vibrations contain and the rate at which this energy is transmitted.  If a string is plucked hard the vibrations will contain more energy and the sound will be louder than if it were plucked more gently.   

Questions

1. What is sound?
2. Sound is the brain’s interpretation of waves of pressure travelling through a medium. Waves of pressure can be produced
3. by any vibrating object like the strings of a guitar, drums or our own vocal cords.
5. How is sound produced? Sound is produced by vibration of an object.
7. What do sound vibrations travel through? Sound travels through solids and liquids as well as air. Sound can not travel thorough a vacuum.
9. Through which substance does sound travel fastest? The
11.               Why is this? because it can travel faster than sound.
14. Why do you think sound cannot travel through a vacuum? Because there is no molecules in a vacuum and if something doest;t have molecules in it sound won’t be able to travel through it.  
16. What is pitch?
17. How would you create a high pitch on:
1. A guitar?
2. A recorder?
3. A drum?
18. What does the volume of sound depend on? If it’s low or high.
20. How would you play a drum quietly? By hitting the drum softly with the stick.  
22. How much energy do you think the vibrations would have if you did this? A low amount of energy.

23. If the vibrations had lots of energy, what would the volume be like? Powerful and will be very loud and probably travel faster.

Use the words below in the reading passage.

hitting     vibrations     plucking    blowing     energy     liquid   sound     felt    loud     quiet    air   sea    high    long     water

blow   low     short       finger

Changing Sounds

Sound is a type of _____ energy ____.   Sound is produced by ____ __ sound _____.

Vibrations are made must by _____hitting____ a  drum, _____blowing_______ a recorder,  ______plucking_____ a string.

_____sound  ______ can travel through a solid _____ liquid____ or gas and reach our ears where it can be heard.  If the vibrations have a lot of energy then they are ___loud____.  If they have little energy then the sound is ___low_____.  Sometimes vibrations can be ____felt___ on the skin.

Sound travels faster in a solid than in ____sea_____.  It travels faster in water than it does in _____air_______.

Dolphins communicate with each other under the ___water___.  

Pitch is the highness or lowness of a sound.  A ____ quiet___ pitch is caused by short vibrations and a low pitch is caused by ____ high____ vibrations.

The pitch of a note produced by a guitar depends on the length, thickness and tension of the string.  A shorter, thinner, tighter string produces a high pitch and a longer, thicker, looser string produces a low pitch. On a guitar the strings can be shortened by putting a  ___ finger

______ on the fret board.

When you __blow______ into a wind instrument the air vibrates.  The pitch depends on the length of the column.  A long column makes a __short_____ pitch and a ____ long____ column makes a high pitch.

The loudness (volume) of the sound depends on how hard a string is plucked.  The sound will be louder the harder it is plucked.

Cup experiment

Name: Ramonadel and Anisha

Title of experiment: Using a cup as a telephone experiment.

Question:

(What did we want to find out?)

First we were given a plastic cup with a thin string and a pin and a ice block stick broke in to half. First we had to poke a small hole at the bottom of the cup and then put the string through and tied it to the stick so the string won’t come off. After that we had to spread out and talk to each other, the other person talk and the other person puts their cup next to their ear so they will listen to what you are saying. After that we moved on to the will string which felt like a thick rope, then we had to make the hole bigger so the string so we will be able to put the string through, after that we tested out is we could hear each other and we could just not really clearly. But once we have finished with the wool string we moved on to the thick string. The thick string couldn’t fit the through the cup so then we made the whole bigger and then we sticked the string through the cup and then tied it to the stick after that we tested it out if we could hear each other and we did but again not clearly.

Hypothesis:  (what do you think will happen?)

I think that when we try out the cup experiment we could hear each other clearly but if we don’t speak loud we won’t barely hear each other. I think we would hear each other with the wool string because it is more thicker. But with the other string I think we won’t be able to hear each other because it is thin. And if there is a whole in the string or ripped I think we will barely hear each other.

Procedure:

How will we find out?

(Step by step)

You need an small hole at the bottom of your cup ( Plastic ),

Put your string through the hole,

tie the string to an ice block stick,

spread out so you will be able to hear each other,

Make sure the whole is small for the small string because then you will be able to hear each other and if its big you will barely hear each other. But for the thick string you will have to make the whole a bit big so it will be able to fit in,

talk to each other and then test it out.

Results:

What actually happened?

For the thin string we sort of can hear each other only if we speak louder then we will we will hear each other clearly.

For the second string we could hear each other clearly and loudly.

For the last one we made the whole a bit big so we hardly could hear each other.  

Conclusions:

What did we learn?

For the first one we learned to spread out and talk and if the hole is big then we won’t barely hear each other.

For the second one we did everything right. If you pull the string you will be able to hear each other clearly.

For the last one we learned to make the hole a bit small.  

you can not see the string because it blends with the whiteboard.

Being Self - Confidence