Wednesday, June 19, 2019

Gummy Worms

We are learning about chemical reactions. Some are reversible and some are irreversible. I liked making gummy worms. We had to write an explanation about what happened.If I did this again, I would try and finish faster.

Have you ever wondered how a polymer is made? Mix two cups of water and a teaspoon of calcium chloride into a bowl to make an activator solution. Suck up sodium alginate into a pipette and squeeze the liquid into the bowl. It formed gummy worms. This is a chemical reaction. It is a irreversible.

1 comment:

  1. Kia Ora Josh,
    I really liked the way you used scientific language.
    I learnt that when you make gummy worms it is irreversible.
    Have you got a photo to add to your post. Did Mrs Naden take any photos?
    Mā te wā
    Mrs Torrie

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