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Asked by lolly pop to Elliot, Thomas, Rupesh, Hazel, Ellen on 15 Jun 2016. This question was also asked by 972bsmf33.
Question: What is your favourite messy experiment?
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Ellen Gill answered on 15 Jun 2016:
Playing around with ferrofluid is great fun, but if you spill it that stuff’s never coming out.
This isn’t something I’ve ever done professionally btw, I just bought some off amazon and learned the hard way after propping it up under stereo speaker magnets…
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Thomas Biggans answered on 15 Jun 2016:
Ever made a water rocket?
You need a plastic bottle something like a 2L coca-cola bottle, a nozzle and a bicycle pump. Fill the bottle with water leaving a little bit of space at the top, attach your nozzle and your pump, point the rocket upwards and start pumping air into the bottle eventually the pressure due to the compressed air will force the water out the bottle and blast off!
You can add more bottles for more power, some fins for stability and a parachute for a soft landing. Adding some soap to the water creates foam for your rocket to give it a bit more thrust. It can be very messy!
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Elliot Jokl answered on 15 Jun 2016:
I used to love the volcano experiment, where you put some bicarbonate of soda in some water with some red food colouring (because lava is red, obviously, but this is optional) and a bit of washing up liquid. You then add some vinegar and this produces lots of carbon dioxide gas that gets trapped in bubbles by the washing up liquid and creates lots and lots of messy foam.
Bonus points if you make a paper mache volcano to put this into, for the full special effects.
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Hazel Garvie-Cook answered on 15 Jun 2016:
A really nice messy experiment is making cornflour slime. To make it, you just have to mix cornflour with water (about twice as much cornflour as you have water).
When you stir the mixture slowly, it acts like a liquid. But when you hit it suddenly with a spoon, it acts like a solid. It’s really weird stuff.
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