Monday 2 December 2013

Why does it rain...?

For our science experiment today we looked at why and how it rains.  This is quite a quick and easy experiment to do, but quite effective.

All you need is a glass vase, water, shaving foam and food colouring.  First fill the vase with water, then add a generous helping of foam.  Lastly add some food dye and watch as it seeps through the clouds and drips out into the water.


It was good fun adding the food dye... which is why this looks like a very bad storm has happened :)

We had a talk about water evaporation and the cycle of water too.  Along with looking at what causes thunder and lightening.

I've recently seen another experiment that shows evaporation quite clearly and think we'll have a go at this one too: http://www.weatherwizkids.com/experiments-make-rain.htm  In fact I can see us looking at quite a bit of that website over the next few weeks.

Meanwhile in our freezer is a balloon full of water waiting to (hopefully) produce a nice coloured ice ball.

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