My Eggsperiment - Term 3

Let’s start with the bubbles you saw forming on the shell. The bubbles are carbon dioxide. Vinegar is an acid called acetic acid, and white vinegar from the grocery store is usually about 4% acetic acid and 96% water. Eggshells are made up of calcium carbonate. The acetic acid in the vinegar reacts with the calcium carbonate in the eggshell to make calcium acetate plus water and carbon dioxide bubbles that you see on the surface of the shell.
The chemical reaction looks like this . . .


The egg looks translucent when you shine a flashlight through it because the hard outside shell is gone. The only part that remains is the thin membrane called a semipermeable membrane.

You might have noticed that the egg got a little bigger after soaking in the vinegar. Here’s what happened…Some of the water in the vinegar solution (remember that household vinegar is 96% water) traveled through the egg’s membrane in an effort to equalize the concentration of water on both sides of the membrane. This flow of water through a semipermeable membrane is called osmosis.

Should NZ host the Olympics.

                                Should New Zealand Host The Olympic Games?

I am here to persuade you that New Zealand should NOT host the Olympic Games!There are so many reasons why we shouldn’t, but to explain all of them, it would take quite a long time, so here are just a few.

To begin with, our country is too small. There would not be enough room to build all the new facilities, stadiums and arenas. Buildings, including homes will have to be demolished to make for the new Olympic arenas. Also, since we have such a small population, may not have enough builders to get it finished in 8-10 years. They would have to work long hours planning and building. They would get sore muscles and might not get a lot of time to rest them. The Olympics would have to be held in Auckland, it would not be fair, just because the other cities are too small for it.

Furthermore, New Zealand would not have enough money. There would not be enough money to build more houses, hotels and motels, not to mention all stadiums. Workers might get half way through building a stadium when they find out they won’t have enough money to finish it to high standards eg: no seating, or no lights, it would be a disaster to have to compete in unfinished conditions.

My final reason is there is not a lot of room for people to stay. Since we are such a small country there is almost no room to build more places to stay. The athletes would have to billlet at peoples homes, which could get confusing language wise, or stay in tiny little houses or hotels, that would have to suck! So many people would have to lose so much of their farmland and crops to make room for the new facilities. What would they do with their animals if there was no paddocks to keep them in, they can’t just kill them all, that just wouldn’t be fair to all the innocent sheep, cattle, pigs, dogs and many more animals.

In conclusion, we shouldn’t host the Olympics no matter what anyone thinks. New Zealand is just too small, the country doesn’t have enough money and there would be no room for the foreign people to stay. New Zealand SHOULD NOT host the Olympic Games!

By Alyssa

Mandarin Lessons

This year every second Friday we have a lady from china called Rachel come and give us Mandarin lessons. She is really good and likes to play games with us, most of the time we would have to count in Mandarin for something or tell a blindfolded person which way to go in Mandarin it is really fun right now i have 21 stamps.

pH Scale

We have been learning about pH Scale in rm7. pH stands for power of hydrogen, which is measurement hydrogen ion concentration in the substance. The total pH scale ranges from 1-14 with 7 considered to be neutral. A pH less than 7 is said to be acidic, it will be reddish pinkish. The lower it is it will be a bluey greenish colour. This is my pH scale. 

Whakapapa

We have each done a whakapapa each, they will have your dad's parents your mum's parents your parents, you and your siblings in age order, oldest to youngest. My whakapapa is:

Ko moe a David May i a Linda Ferguson 

Ka puta Craig May

Ko moe a Ian Laird i a Denice Forbes

Ka puta Gillian Laird

Ko moe a Craig May i a Gillian Laird

Ka puta Rylee, Ko ahau, Ko Caitlyn

Tena kautou, tena kautou, tena tautou katou.