Cornflour Goo
The Ingredients
You will need:
A jug of water (doesn't need to be full at all- just in case of having to start again)
A cup (If you need to measure the water)
Some washing up liquid (this was just out of pure curiosity)
A bowl (that is resilient to gloop)
A tablespoon(or two)
Some cornflour (no particular brand necessary)
Food colouring (it is optional- the experiment works just as well without)
A jug of water (doesn't need to be full at all- just in case of having to start again)
A cup (If you need to measure the water)
Some washing up liquid (this was just out of pure curiosity)
A bowl (that is resilient to gloop)
A tablespoon(or two)
Some cornflour (no particular brand necessary)
Food colouring (it is optional- the experiment works just as well without)
Step 1
Add three heaped tablespoons of cornflour to the bowl.
*If you want to make a large quantity, add two cups.*
Step 2
Add a few drops of washing up liquid.
*This step is optional, and the amount of washing up liquid you put in is optional too. Experiment!*
Step 3
Measure, or guesstimate 1/4 cups of water. This part is vital to the experiment, and if you get it wrong- you will have to start again!
*If you added two cups of cornflour earlier, add one cup of water!*
Step 4
SLOWLY add 1/5 of the water!
*If you are following the asterixed recipe, add 1/8 of the water, and the food colouring*
Step 5.
Then mix the cornflour into the water with your hands. Repeat this until all the water is gone!
Step 6
You should now have a white/green gloop. Scrape the remaining mixture of your hands, using two spoons. Play around with it for a bit, but then *flatten it into a pancake on the bottom of the bowl*(optional)
*Step 7*
*Then cover the mixture bowl in aliminium foil, and stab it three times before putting it into the freezer overnight. Wait until the following morning to see the results- you won't find them here!* (this step is optional, but has to be used it you want to create multicoloured glue)
Notes
MESSY!
This is an alternative version of a fun, traditional way of making homemade goo. Experimenting with the original recipe can create fun results, so try different quantities of ingredients, or adding different substances to see what affect they have on the goo. A quick suggestion- if your table was as messy as mine when I had finished- CLEAN IT UP! I would advise everyone to do this outside, as it gets everywhere and takes ages!
The goo is sometimes a solid, and sometimes a liquid- because cornflour doesn't dissolve. Instead, it forms tiny, solid pieces that hang suspended in the water. Scientists call this weird liquid a colloid.
The harder you press, the firmer- but when there is no pressure on it, it slips and slides everywhere! To learn how to handle colloids, remember this phrase; slow for flow: hard for solid!
The goo is sometimes a solid, and sometimes a liquid- because cornflour doesn't dissolve. Instead, it forms tiny, solid pieces that hang suspended in the water. Scientists call this weird liquid a colloid.
The harder you press, the firmer- but when there is no pressure on it, it slips and slides everywhere! To learn how to handle colloids, remember this phrase; slow for flow: hard for solid!