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Thursday, 15 May 2014

Yr 5& 6 experiment observation


Aim: To find out the effect of heat on solubility of substances


Prediction:
  • I predict that sugar will dissolve in hot water
  • I predict that coffee will not dissolve in cold water and won’t dissolve in hot water either
  • I predict that cornstarch won’t dissolve in hot water and cold water
  • I predict that milo will dissolve in hot water
  • I predict that rice will not dissolve in hot and cold water


Substances:
Hot Water:
Cold Water:
Milo
It dissolved quickly
It stayed at the top
Sugar
It sank down
It sank down
Coffee
It spread quickly and dissolved
It sank down
Cornstarch
It dissolved
It floated and slowly spread
Bread Flour
It floated
It floated


Results:
Milo: When it was in the hot water it dissolved quickly but when it was in the cold water it and stayed at the top.


Sugar: In the hot water it sank to the bottom and it didn’t dissolve. In cold water it did the same thing.


Coffee: When the coffee was in the hot water it dissolved and spread quickly. It was different when it was in the cold water. Instead of spreading and dissolving, it sank.


Cornstarch: In hot water the cornstarch dissolved and in cold water it slowly spread and it floated.


Bread Flour: In hot water the bread flour floated but didn’t spread. In cold water it did the same thing.


Conclusion: We conclude that some substances dissolve easily in hot water such as cornstarch, milo and coffee.

Chatham Islander's adaption to their new home

How the early Chatham Islanders adapted to their new home


When the early Polynesian people came from  New Zealand to the Chatham Islands, they had to adapt or change their ways of doing things.


Firstly these people couldn’t grow their vegetables because of the cooler climate. So they had to find their own food by going to different Islands. They became very good hunters and fishermen.


They had many problems about going on sea because they needed new boats to use to go to different islands so that they could find more food to eat. There was one boat that was not like any other. This boat was different from the others because instead of keeping the water out, the boat had a hole so that the water can go through the boat. How clever! The name of this special boat was “Wash through waka.” This boat had many parts that were special like a bow, a stern, a hull and the boat had a ballast. A ballast is something that is very heavy, helping the boat to be very stable. The wash through waka was made out of reeds but the only parts that were made out of wood were the 2 runners which were at the back of the boat. The paddles were also made out of wood. This boat was very strong and is like a boat that doesn’t sink at all!


Carbonel- It's a very good book!

CARBONEL

 Carbonel is a story about an ordinary girl called Rosemary. Rosemary bought a cat called Carbonel and a witch broom. She got both of these things from a witch that she had bumped into in a marketplace. The story goes on when she discovers new things. She discovers that when she has the broom she can understand what Carbonel is saying. Another thing she discovers is that Carbonel is a royal cat and that he had been kitten-napped and still had to back and fight for the throne. I like this story because i like how the author hooks the reader and how the author made their adventures very fun and thrilling. I like Rosemary’s personality because she is a fun person and she is a character that always hopes for success. I also like her personality because she always insists to help and she looks forward to new things. I recommend this book for people who are interested in magic and for people who love adventures.