How to make a calculator work with a homemade battery

Question: Can you make a calculator work with a homemade battery?

Hypothesis: The vinegar will react with the wire and the galvanised nail to make electricity to charge the calculator.

Equipment: 2 galvanised nails, 2 bits of of masking tape, 1 marker, 3 wires, 2 cups, White Vinegar and a battery powered calculator.

Method: 1.The two cups are filled with vinegar and tape is put over the cups,it is pierced and marked positive and negative. 2.The nails are put into the negative end of the tape and a wire is put into the positive end and the other end of the wire is tied around the nail on the other cup. 3.Another wire is tied around the last nail and the last wire is put into the last positive hole and both wires are put into each end of the battery place in the calculator.

Observation: When the wires are hooked up to the calculator it turns on.

Explanation: The calculator worked because when the nail and the wire went into the vinegar it created negative and positive particles and the negative particles went through the wires and into the calculator and turned it on.

SMART AS A CALCULATOR

Will the calculator work with a vinegar powered battery? I don't know. My hypothesis is that the battery will power the calculator because there are two types pf metals causing a chemical reaction to form in the vinegar. For this experiment you will need the following... 2 bowls, tape, 3 wires, 2 galvanised nails [ zinc ], and last but not least calculator.
First 2 bowls are used or cups and are filled up with vinegar. Next the tape is put over the bowls and they are labeled positive and negative. One side of the wire is wrapped around the nail and the nail is put on the negative side through the tape and on the other bowl a whole is pierced through the positive side and the same wire is put through.
A whole is poked on both sides of the tape and the other nail is put through the negative side. The other wire is wrapped around the nail and through the positive side of the calculator. The other wire is put through the positive side of the other bowl and the other side of it in the negative side of the calculator.
Watch what happens.
My observation was that the calculator turned on.
The reason for this chemical changeis because the two types of metals react in the vinegar causing the calculator to work.

battery power

Question: Will a home make battery work with a home made battery?

Hypothesis: I think the calculator will work.

equipment: two cups, 4 wires, a battery powered calculator, vinegar and two galvanised nails (zinc) Method: first the vinegar is pored into the two cups. Now put one end of the wires into vinegar in both cups. Now I connect both nails to of the wires. Now connect the two cups with one nail wire and normal wire. Finally the wires connect to the calculator and then watch. observation: I swore that the calculator turned on when the wires were connected. explanation: The nail reacted to the vinegar and the wire reacted with the vinegar that charged up the calculator to make it turn on.

crazy currants by TS

question

where is the gas formed during the chemical reaction of vinegar and baking soda and how can we see this

Hypothesis

The gas is formed as bubbles inside the mixture

Equipment

baking soda , sultanas, container, vinegar, and measuring spoons

Method

The vinegar is poured into the container.
The baking soda is sprinkled in the container
The sultana are the added.

Observation

Bubbles formed when the baking soda and vinegar mixed.
The sultanas traveled to the top of vinegar and then down.This repeated until the bubbles disappeared

Explanation

The sultanas moved to the top because the bubbles of carbon dioxide formed under the sultanas and pushed them to the top. At the top the bubbles popped and released gas causing the sultanas to fall. This process repeated until there were no more bubbles this proves that gas is formed as bubbles inside the mixture

Crazy Currents by TC.

Question: Where is the gas formed during the chemical reaction of vinegar and baking soda and how we can see this.
Hypothesis: The gas is formed as bubbles inside the mixture.
Equipment: Baking Soda, Vinegar, Sultanas, Measuring Spoon and Containers.
Method:
1) The vinegar is poured into the container.
2) The sultanas are added.
3) The baking soda is sprinkled into the container.
Observation:
1) Bubbles are formed when the vinegar and baking soda is mixed.
2) The sultanas traveled to the top of the bubbles and then down.This is repeated until all the bubbles have diapered.

Explanation: The sultanas moved to the top because of Carbon Dioxide formed under the sultanas and then pushed to the top.At the top the bubbles popped and released gas causing the sultanas to fall.This process is repeated until there is no more bubbles.

This Proves: The gas is formed as bubbles inside the mixture.P.S the the gas Carbon Dioxide, scientists call it CO2.

Crazy Currents, by V.S.

Question
Where is the gas formed and how can we see this during the chemical reaction of vinegar and baking soda?

Hypothesis
This gas is formed as bubbles inside the mixture.

Equipment
Baking soda
Vinegar
raisins/sultanas
measuring spoons
container

Method
1. The vinegar is poured into the container.
2. The baking soda is sprinkled in the vinegar.
3. The sultanas are added.

Observation
1. The bubbles formed when the baking soda and vinegar mixed.
2. The sultanas travelled to the top of the vinegar and then down. This repeated until the bubbles disappeared.

Explanation
The sultanas moved to the top because the bubbles of Co2 formed under the sultanas & pushed them to the top. At the top, the bubbles popped & released gas, causing the sultanas to fall. This process repeated until there were no more bubbles. This proves that when you mix baking soda and vinegar, the gas is formed as bubbles inside the mixture.

Our Trip to Te Tuhi The Mark

The New Library Opening

John Key Opening the Library

On Friday the 13th of March John Key came to the the school to open our new library. First the councillors had to go to the office to show the invited guests and the parents where to sit. After that we had to go inside and than we went outside of the new library.


First Mr Key cut the orange ribbon. Then the councillors followed John Key and some other people. He showed us the water fountain and then he uncovered a plaque and it said the day that the library was opened and by John Key

After that we went into the library. It was really cool. It was so amazing I could not believe it. First we had to show someone around the new library and then I got to have a look around.The intermediate people went on the computers.

After that the councillors had to go outside the stuffroom and we had afternoon tea with John Key and I got to shake his hand.That was the end of the cool as day with John Key and the opening of the new library.

I had so much fun I want something like that to happen again!!

By N.V

Self portrait

Self Portrait

My hair looks like a brown swirl of fresh melted chocolate.

My eyes are soft like a brown bears fur.

My smile is like a sparkling reflection by the water side.



By P.G

My Self-Portrait

My hair is dark as a shiny black panther.

My eyes are as shiny as a sun setting.

My smile is beautiful like a Diamand in a sun.

By:S.D

The opening of the new library.

On Friday the 13th March 2009 we went to the auditorium for the opening of the library. Mrs Plowright gave a speech. Then John Key the prime minister of New Zealand talked to Elm Park School.

After that we lined up and sat down outside the library. There I saw an orange bow across the library entrance. Mr John Key cut the bow. Mr john Key got to have a look at the new library. It was very colourful .

While we were waiting Mrs Tetupu sang some songs with us. Then some boys did the haka and all the councillors and haka people got to go and have morning tea with John Key. John Key shook their hands and when they came back to class they said they would never wash their hands again. It was the most important and exciting day in my life. I hope I can see him again some day.

By D.S

Self portrait

Self portrait

My hair is black like a metal pole that holds our table at school.

My eyes are brown as a brown grizzly bear’s fur.

My smile is as wide as London bridge going straight over the river.




By D.T

My self-portrait

Self Portrait

*My hair looks like yellow gold from a treasure chest that pirates are looking for.

*My eyes look like an aqua grey metal melting in the sun with my eye lashes looking like slices of mango shining in the distance.

*My smile looks like a whipped cream pie with cherries on top.

By T.C

My Self-Portrait

My hair is as spiky as a sharp knife in the kitchen cutting a tomato,it feels like a broom waving against my hand.

My eyes are a pile of mud in a rugby stadium getting squished by a black rugby ball.

My smile is as bright as a star and as red as a raspberry.

By S.F

(Image from http://www.rugbystore.co.nz/future-all-black-rugby-ball.jpg)

Opening of our new Library

Recount of New Library Opening

On Friday 13 March the Prime Minister of New Zealand, Mr John Key came to our school to open our new Library.

All the students gathered in the Auditorium and listened as he was greeted in Te Reo Maori and invited inside. We sang a waiata during the Powhiri and then he talked to us about always striving to reach our goals by giving our best at all times.

After the speeches we went outside and sang again. Students from Pakuranga Intermediate supported us with singing and performing with the Kapahaka group. The boys of the Kapahaka group did a haka and they were fantastic. My Key cut the orange ribbon with orange scissors and pronounced our Library open. We cheered and clapped.

Our councillors took the invited guests and Mr Key for a tour of the Library. After that we all returned to our classroom.

I was very excited about the Library opening and proud that we sang the waita’s well. It was a highlight of my teaching year and I hope Mr Key can return to our school again some day.
Miss Lucas

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