Friday, 5 December 2014

How to make gloop

Making gloopy gloop (or slime, goop, oobleck or whatever you like to call it) is soooo much fun! Gloop is really easy to make using just 2 ingredients, cornflour and water. It is an extra messy sensory activity for kids and it is fascinating to see how the mixture changes from a solid to a liquid as it is played with. 
How to make gloop (also known as goop, oobleck or slime) and play with it on a tuff tray.  a great sensory play idea for toddlers and preschoolers.
Take a look at our frozen winter gloop, our dinosaur swap made from gloop and our frozen fish sensory play. 


You will need: (affiliate links)



  • Cornflour (cornstarch) 
  • Water 
  • Bowl 
  • Food colouring (optional) 
  • Tuff tray (optional) (UK link
  • Kitchen items e.g. spoons, cake cases, cutters, measuring spoons & cups 
  • Paint scrapers are fun to use too (UK link)


How to make gloop



To make gloop all you need to do is mix cornflour (or cornstarch) and water together at a ratio of about 2:1.  Don't worry about the measurement being too exact, it's quite fun to experiment with adding more or less cornflour or water to see how it changes the mixture. 

How to make gloop (also known as goop, oobleck or slime) and play with it on a tuff tray.  a great sensory play idea for toddlers and preschoolers.

We used a whole box of cornflour.  Harry (aged 3) had fun playing with the cornflour in a bowl whilst it was dry, then we slowly mixed in the water. It was quite hard to mix together as the cornflour goes hard as you mix it, but Harry thought this was REALLY funny.

How to make gloop (also known as goop, oobleck or slime) and play with it on a tuff tray.  a great sensory play idea for toddlers and preschoolers.


Playing with gloop in a tuff tray

Once we had made our gloopy gloop (as Harry called it) we poured it into our tuff tray.  We added a few drops of food colouring. Harry loved watching the colour spread out into the gloop and got quite excited about it.   I added a selection of items from the kitchen (spoons, cake cases, cutters, measuring spoons & cups) and some scrapers on the tray for Harry to play with.

How to make gloop (also known as goop, oobleck or slime) and play with it on a tuff tray.  a great sensory play idea for toddlers and preschoolers.

Harry used the spoons, measuring cups and his hands to try and pick up the gloopy gloop. He loved watching the mixture moving back together after he had made holes in it. He picked it up and let it trickle out of his hands. 

How to make gloop (also known as goop, oobleck or slime) and play with it on a tuff tray.  a great sensory play idea for toddlers and preschoolers.

He used the scrapers to make tracks and spooned the mixture into the cake cases to make gloopy gloop cakes. 

How to make gloop (also known as goop, oobleck or slime) and play with it on a tuff tray.  a great sensory play idea for toddlers and preschoolers.

Before long Harry was sitting in the gloop and covered in it! He played with it for nearly an hour and by the time he had finished the cornflour had turned back into a powder (which helped with the cleaning up as it was easily brushed up.) 

How to make gloop (also known as goop, oobleck or slime) and play with it on a tuff tray.  a great sensory play idea for toddlers and preschoolers.

Harry chatted away to himself (as he always does) throughout this activity and he really used his imagination.  The gloop became cakes, ice and soup! He loved playing in the gloopy gloop so much he has already asked to do it again tomorrow!

Harry: aged 3



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