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Monday 23 September 2013

Chemical Reaction

The four substance that we explore can be grouped under the name of carbonate.
When each of the carbonate were put in our mouth it reacted by giving a taste.

Describe the Reaction:
  • I had a twinkle feeling on my tongue and it started to go on my inside cheeks.
  • The reaction was the same when the tartaric touch my mouth.
  • felt like tiny things on top of your tongue.
  • There was no reaction on some of the ingredients.

Acids that we find in the kitchen:
  • Lemon
  • Orange
  • Vinegar
  • Lime
  • Soya sauce
    When you mix a substance that contains an acids (for example, vinegar, citrus, fruit juice, acids.) with a carbonate ( for example washing powder, baking powder, chalk, marble, eggshells, or limestone) the two react to from a carbon dioxide gas. It is the escaping gas that causes the fizzing. The reaction can be expressed in the following way.

Acid + carbonate → carbon dioxide + a salt + water 2HCI + CaCos --> CoCle + H2o hydrochloric acid + limestone → carbon dioxide + calcium  chloride + water.

Friday 20 September 2013

Basin Walk Report


Caption: Ethan testing out his underwater machine.

Room 8 went to Panmure Basin for their Underwater viewing machines testing. They were trying to discover what is under the water. When Room 8 got to Panmure Basin, Mrs Dines gave Frankie a canister and asked her to get a small amount of the Beachfront water and told Mrs Foden that she has to watch Frankie while Mrs Dines takes the rest of Room 8 to the area where they are going to test their Underwater viewing machines, and afterwards they can catch up.

When Room 8 got to the area where they were testing their Underwater viewing machines, it was an area that had a park next to it. When Frankie and Mrs Foden caught up, Mrs Dines had to check the water before room 8 can go in and test their machines.
When Mrs Dines says it was ok Ethan and Asia was already by a rock testing their machines.

When Mrs Dines saw small little fishes and told everyone, Asia jumped up on the rock and started to scream and almost pushed half of the class into the water.


After an hour of screaming and pushing half of the class into the water, room 8 and Mrs Dines decided to head back to school before the bell rang for morning tea.