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Make plastic milk


Make plastic milk

What to do with this activity?

Follow these instructions from Science Bob to make a (sort of) plastic from milk. The vinegar acts with the milk to make blobs of CASEIN that are quite gluey and stretchy. 

Most of the plastic we use does not break down - it's there forever. Nowadays there is a move to make plastic out of natural materials - like corn starch, cassava roots, sugarcane and yes, MILK - that will go back to nature.

Talk about plastic and the terrible effect our over-use of it is having on the world. Try to make choices as a family that avoid unnecessary plastic, like plastic straws and cups which can be made out of paper.


  • Why am I doing this?

    Talking and listening helps your child build their language and thinking skills – this is a great foundation for them to learn more. Asking questions, finding out answers and looking up words together will help build your child’s vocabulary and knowledge of the world around them. 

  • How can I do more?

    Encourage your child to give their opinions and to ask questions about things they see around them. Help your child to make decisions by discussing their ideas. Check if your child understands different things they hear. Encourage your child to teach you new words and phrases they have learnt.

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