Alien goo. What is it? Why do aliens use it? When did aliens discover it? I can’t answer any of those questions, because as far as we know, alien goo doesn’t exist. But I can tell you how to make something a lot like it! This goo will magically change form before your very eyes. You don’t need time or a laboratory for this one; like the tremendous teabag rocket, the test takes less than ten minutes. Furthermore, it uses entirely household materials, so won’t harm the environment!
WARNING: This is an extremely messy experiment, especially if there are any excited children involved. Make sure you’re wearing clothes you don’t mind getting stained!
The alien goo ingredients:
- Some water
- As much cornflour or cornstarch as you can acquire
- Some food colouring – I used orange.
- A bowl
- A measuring jug
- Some newspaper to cover any surfaces
The alien goo method:
1) Measure out some water – perhaps 100ml – and pour that into the bowl.
2) Dry the jug, then add four times that amount in cornflour to the water.
The image below shows a mix with far too little cornflour. The original
blueprint I uncovered from the crashed spaceship recipe I found specified a ratio of one part water to two parts cornflour; I’d recommend at least four parts cornflour. You can always add more water to balance it out.
3) Add seven or eight drops of food colouring.
4) Mix it all together and let if flow!
“Alien goo” is… strange. You can pick it up like a solid, roll it up into balls and shapes, but the moment you suspend it in the air, it seems to “melt” like a liquid.
Be warned – siblings seek this stuff out like they can smell it. Perhaps they’re aliens too…
The alien goo science:
This “alien goo” is a “non-Newtonian fluid”. Isaac Newton, who calculated loads about gravity, made a “law” – that’s a prediction about physics – that liquids will always behave in a certain way. But, naturally, we’ve discovered more since he lived 400 years ago. One of the things we’ve discovered is liquids that don’t follow that law he made – alien goo being one of them. And because they don’t do what Newton said, they’re non-Newton-ian fluids!