Posts Tagged ‘radioactivity’

In a previous post I wrote about the Fish Tank Cloud Chamber workshop funded by IoP and organized by Cerian Angharad in Cardiff and I promised I would run one in Gloucester. Well, this evening I did and all delegates had great fun taking part in the filming of the iMovie trailer you can see below. I made using an iPad third generation and it was very easy to do, because these trailers come with the storyboard already set up for you. In fact, all the clips, places for captions and duration of the trailer are fixed, which means that you really need to focus on the message you want to convey and do it in the simplest way possible. But it also prevents you from adding too much to your video. Also, I like the fact that there is no dialogue and the message is communicated entirely through the clips and captions you create!

These are important skills for any learner and I would encourage any educator with an iPad, iPhone, or iPod Touch to let their pupils create these short trailers for their learning. I got the inspiration for this one and other trailers I made by the inspiring work Gavin Smart does with his learners at Priory Community School.

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I attended the IoP make and take workshop to build my own fish tank cloud chamber last Thursday and it was a great experience! The workshop was organised and led by Cerian Angharad and held at St Teilo’s CW School. The tank is really easy to build and quite cheap too. All you need is some sticky felt, which you stick at the top (which is actually the bottom of the tank) and soak with alcohol, a plastic fish tank, a metal tray, on which the top of the fish tank needs to be stuck to with duck tape and you’re done. The rest is a normal shallow tray that can be found in most school labs, a sheet of polystyrene to rest on the bottom of the tray and dry ice that goes between the polystyrene and the tray with the fish tank resting on it. See the photo below to have a better idea!

The rod in the middle of the tank is a radioactive welding rod which emits alpha particles. The chamber works really well and you can soon see lovely traces from the  alpha particles emitter by the rod. Some of the tanks that were made also showed very clearly cosmic rays/background radiation coming into the tank from the sides.

This is one of the best workshops I have even been to and the tank is great for radioactivity demonstrations, as the whole class can gather around it and see what’s going on. I will certainly run the workshop in my area in Gloucestershire, so contact me if you are interested in attending. If you are too far from Gloucestershire, find your IoP Network Coordinator here and ask them if and when they will run this workshop in your area!

Watch the video below to get a feeling for what you will see in your tank!