Friday, 8 August 2014

Cloud Jars

It has been raining quite a bit around these parts lately. Little Man has been fasinated with clouds recently, always looking out for grey ones, asking if it we think it would rain that day and how heavy it would be.

I had been seeing cloud jar experiments around on Pinterest, so I thought we'd give it a try!

What you'll need:
Shaving cream
Container/Jar of water
Food colouring + smaller container of water

Step 1:
Top the jar/large container of water with shaving cream.

Step 2:
Convince children to wait patiently.

Step 3:
Add food colouring to smaller container of water.

Step 4:
Convince children that both colours are equally good.

Step 5:
Let the kids have fun!

As the shaving cream cloud fills with water, it will beging to rain!

Here, you can see the dark bottom of the 'cloud' more clearly. Of course, in real life, the rain is not coloured, so why are rain clouds grey/dark? This is because rain clouds are so thick, not much light makes it through to the bottom. So when we look up at the clouds from below, they appear dark or grey. In addition, the water droplets of clouds about to rain are larger in size, so they are more effective at absorbing light, rather than scattering it, so that adds to the darkness too.

Have a go! The kids had a blast!

Little Man: 4 years
Little Lady: 23 months

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