Lucas’s Seuss Oobleck

Last week we shared a recipe for making slime, but some of you may not have borax on hand, so here’s another option.

Grant and I were looking for more creative ways to get Lucas out of his room. Yesterday he created a sugar free iced chocolate drink and today we decided to make some edible green slime.

The ingredients we had at home differed from the recipe so we improvised and ended up with a less gooey version of Oobleck, so now we have a new recipe and a science experiment too!

The name Oobleck comes from the Dr. Seuss book Bartholomew and the Oobleck, King Derwin of Didd becomes bored (like Lucas funnily enough) and asks his magicians to make something new and exciting fall from the sky. Bartholomew then has to rescue the Kingdom from the ensuing havoc. I’m really happy that Lucas’s Oobleck did not fall from the sky nor did it wreak too much havoc in my kitchen, even when Cole arrived and the two of them were doing tricks with it there was not a lot of mess.

On a scientific note, Oobleck is a non-newtonian fluid, that means it acts like a liquid when being poured but when a force is acting upon it, it will be solid. If you make enough you can even walk on it. Take a look at this ‘walk on water’ pool youtube video.


This version is edible, although I would not actually eat it, however, if your children do ingest some they’ll be fine. It’s also very easy to clean up, just roll/pick up the pieces and then wipe the surface with a wet sponge.

If your Oobleck is too soft add a little more water, if it’s too gooey add more cornflour. It will keep if you moisten the top with water and cover. Ours is on the bench but to prolong it keep in the fridge and warm up again with your hands and a little warm water until soft again.

4 drops Hopper Natural Food Colouring in Green

430g Cornflour

2 Tbls Chia Seeds

1 1/4 Cups Warm Water

2 Tsp Agar Agar or 1 tsp gelatine

2 Drops Peppermint Essential Oil

In a small bowl combine chia seeds and 1 cup warm water, stir well and leave for an hour.


Then add in the food colouring and stir again.

In another bowl mix the Agar Agar with ¼ cup warm water, stir and leave to cool.

Once cool add the cornflour and cut in to combine.

When ready, add the chia seed mixture and stir, this will thicken quite quickly and you’ll need to use your hands.

If it gets too thick add more warm water just one teaspoon at a time. If it gets too sticky add cornflour one teaspoon at a time.

You can decide what density you’d like, or try different versions, it’ll provide hours of entertainment.


Why not explore all kinds of materials and substances; it’s also great fun to get a microscope which will enable your kids to witness the very cells that make up the world around them. This can be extremely fascinating and it’s sure to captivate them for many years to come.

For more info on everything you need to know about child-friendly microscopes go here. 

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