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Thursday, 24 August 2017

Kia ora
 On Wednesday we had Cross Country and there were about 300 kids here. It was fun. There were a lot of parents there as well. My mum was there to cheer for me and my brother. Here is a photo of me and my friends getting ready. Ka kite ano

Tuesday, 15 August 2017

Science fair

Kia Ora for our science project me and my group are making a coke rocket. For our coke rocket we had to bring diet coke and peppermint mentos. If we mixed them together it would create a chemical reaction and cause a strong gas. As you can see we have the things here. I will let you know how it works, if our predictions that it will fly actually work.

Wednesday, 26 July 2017

sientific report writing

Kia ora  this our sheared scientific writing report hope you like it.                                                                                          

Scientific Experiment Language and Structure


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TITLE
Yuk and Yum
QUESTION.

If we mix vinegar and baking soda together will we observe some kind of reaction ?
THESIS.
Vinegar tastes sour and it is a liquid. Baking soda is a solid ,soft white powder and it taste salty and horrible. They are both food substances but based on their different taste, they must be chemically different. So, if they are mixed together, there might be a chemical reaction.
HYPOTHESIS.
We predict that when we mix vinegar with baking soda an observable chemical reaction will occur. We might see and hear an explosion, fire, foaming, bubbles, fizzing or something else. The resulting mixture might even be a difference in the size of the materials.   

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EQUIPMENT
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Baking soda
Vinegar
Container for mixing
Teaspoon for mixing
PROCEDURE
Step 1:Pour some vinegar into a container to the depth of about 20cm.
Step 2:use half a teaspoon to measure in one teaspoon of baking soda
Step 3:Mix with a teaspoon
Step 4:Observe and record what happens.
OBSERVATIONS:
At step 2 the mixture started to fizz.A fizzing sound was heard, bubbles were seen to appear in the mixture and the materials rose higher in the container. At step 3, when the materials were mixed, even more bubbles appeared and the volume of the materials in the container rose even higher.When the mixture was tasted, the taste was unpleasant and was similar in taste to baking soda.
                                                                                                                          
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ANALYSIS
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CONCLUSION
The goal of this experiment was to see if an observable reaction would take place when vinegar and baking soda were mixed together. The result of the experiment prove that our hypothesis was correct. We predicted that there would be an observable reaction, and there was. There was lots of foaming and fizzing happening and bubbles appeared which means a gas must be produced. A quick check online showed us that the gas was carbon dioxide.