Technicraft

Today The year 8s made something cool, every time the mixture touched liquid it just started to fizz.

Everyone first had to add Icing sugar, Baking soda, vita fresh, citric acid and tartaric acid into one cup. After all the ingredients were together everyone had to stir and combine every ingredient. All the kids then pour a spoon of the mixture into their mouths. The saliva gave moisture to the mixture which cause fizz. Some say that it feels like slime after 20 seconds of the mixture in their mouths.

Testing

This is my partner and I outside testing our hypothesis

Tech

The year 8’s made some weird fizz

Today The year 8’s made a science experiment that caused fizz.

First all the kids had to pour five mls of baking soda into a plastic cylinder tube. Next everyone had to pour a cup of vinegar  rapidly into the tube with the baking soda and what happened was incredible. The vinegar and the baking soda combined turned into a fizzy liquid which rises up and made a popping sound. It was like a shook can of cola opened and all the cola spills everywhere. Everyone had a taste and by the looks of 12 faces it wasn't cola.

WALHT recall science on thursdays

Solid or liquid?

WALHT: Observe and discuss the reaction when 2 states of matter are combined.

Today the year 8’s had to create a colloid (colloid is 2 states of matters combined into one, no one actually knows if its liquid or a solid )

First everyone had to pour 15 ml of water into a container of corn flour. Next the kids had to stir the water and by the looks of it every stir they made, the mixture got harder and harder but once they stopped stirring, the hard mixture turned straight into liquid. The conclusion was that applying pressure into the mixture will turn the mixture into solid and solid is one of the states of matter and if there is a lack of pressure the solid will transform into a liquid in seconds. It is the most satisfying thing to watch when a hard solid just melts into liquid.

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He aha tenei? - What is this?