Pu rere

 For two periods we have worked on a Pu Rerehu.  This is a device that makes very cool and unique sounds.  We had started off with a piece of wood 200 millimetres long by 50 millimetres wide.  We started by sanding it down and then shaping it to what we need.  My work:

When I first heard about it I thought that it was like a car.  If I were to do it again I would try and change the shape so that it would look more unique and add patterns.

Algebra In Science

 In hurumanu, I have been working on Algebra.  Our task today was to create a slideshow of algebra in science hence the title "Algebra In Science."  We learnt so much during the 13 weeks given, here is a fragment of my knowledge which I gained through Hurumanu 5.

I learnt the algorithm of velocity.  I presented this in the slide show and why this algorithm works.  I explained why and how with data.

Piano Blog post

Where was the piano invented and by who?

The invention of the piano is credited to Bartolomeo Cristofori (1655–1731) of Padua, Italy, who was employed by Ferdinando de' Medici, Grand Prince of Tuscany, as the Keeper of the Instruments.

What did the first piano look like?

What is the difference between a Piano and a Keyboard?

One can make different sounds and the other you cannot.  Because the keyboard can make unique sounds.

What have you enjoyed about learning the piano/keyboard, what have you enjoyed?

I enjoyed some of my favourite music produced on piano.

Lemon Power

Voltage:

Voltage is the pressure from an electrical circuit's power source that pushes charged electrons (current) through a conducting loop, enabling them to do work such as illuminating light. In brief, voltage = pressure, and it is measured in volts (V).

Current

An electric current is a flow of electric charge in a circuit. More specifically, the electric current is the rate of charge flow past a given point in an electric circuit. The charge can be negatively charged electrons or positive charge carriers including protons, positive ions or holes.

Aim:

To create voltage out of a lemon.

Method:

• Roll the lemon out so the inside is liquidy
• Stick a piece of zinc and copper into the lemon
• Connect the lemon up to a voltmeter

Results:

Discussion:

When we rolled the lemon we made the inside liquidy.  We tried it with one lemon then we moved it to a whole bunch of lemons.  When we rolled it we made a whole lot of acidic acid inside the lemon.  This was then converted to a voltage.  When we connected all the lemons which made 2.3 voltage.

Conclusion:

This was fun and I had learnt how lemons have voltage.  This was a fun and different experience.  I would like to do this again and when I do I would want to try it with a different fruit.  To see which fruit has the most voltage. :)