Underwater ‘Fireworks’

Not really fireworks at all. Just a simple experiment ulitising the properties of oil and water, and the beautiful result of food colouring unfurling and spreading wonderful patterns and colour in front of your astonished child (and your own) eyes.DSCF9188

Note – before you start, explain carefully to your child that there will be no real fireworks invloved, just an underwater display similar to firewrks. That way you won’t have a sulking toddler on your hands. Just saying…

You will need:

  • Glass jar,vase or similar (Taller and slim is better that a bowl)
  • water
  • 2 tablespoons oil – any veg oil will do
  • Red, yellow, blue food colouring – no more them 3 drops of each colour
  • small measuring jug
  • measuring spoon
  • teaspoon

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Directions:

Fill you jar/vase 3/4 full with water

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Pour your oil into a small, easy pour jug. Add 2-3 drops of each food colouring no more then this, LESS IS MORE! (*note, we first did this with 3 colours, the second time with just two. I actually preferred only 2 colours as they mixed to form a secondary colour i.e. yellow and blue made green, the 3 colours together ended up a brown shade which wasn’t so exciting. Too much food colouring won’t give you good ‘fireworks’) Let your child to stir the oil and food colouring into the jug to break the droplets apart, they won’t mix.

DSCF9158Give it a good stir!

Tell small person to carefully, slowly (s.l.o.w.l.y….gahh we had one big mess when it all overflowed) pour the oil mixture into the water. Now wait…it takes a little bit of time…but sit back and watch with fascination as the oil and water separate, and ‘ta-daaaah!’ there you have it, underwater fireworks!

DSCF9186 DSCF9172 DSCF9177We repeated this a few times till they got bored, (which usually takes S about 5 minuts) It was really was interesting seeing the different colour combinations and wacthing the colours slowly unfurl in the water, just a little bit magical. I’m not sure if ‘fireworks’ is the best term for this underwater display, but it kind of adds to the drama so I’m going to stick with it!

Oh S wanted me to stir the water too and it created a whilrpool, which was fun to watch and another learning moment! DSCF9163 A quick and easy indoor activity. x

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Science fun #2 underwater volcano!

Another great experiment to try if you have nosey little people in your house  – fun as it involves water (what kid doesn’t love water?!) and ya a sneaky learning experince at the same time…

really simple fun experiment my son saw in a science book we got from the library (yes he gets book out on scince, that is my four year old!)

Its basically a way to observe how hot and cold water mix together…

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We filled a see through bucket with iced water and added red foood colouring, then a small bottle with hot water, coloured blue. You need to put a lid or small plate over the hot water and only remove it once it is in the cold water. I would suggest the grown up does this part, especiallyas it works best if the water is very hot.

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Amazing swirly effect as the hot water mixes with the cold, making billowing underwater ‘clouds’IMG_2812Note how Senny has his face pressed right up against the bucket to see what s going on!

So many questions were raised, and adfter Sennen played with the mixed water noting how is had turned purple. Who said science was dull?!

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