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Marion Burbage Looking at her watch she stood up straight. It was time to start. "Good evening all and welcome to the schools only tower patch where we shall have our last astronomy lesson of the year. Isn't the brisk march air just lovely?" Marion asked rhetorically.
"Now then can anyone guess what we shall be doing tonight? I can give you a hint we aren't stargazing but we are going to watch something spectacular and rare that can be seen in Scotland and in the Nordic countries this time of year."
Sarah's hand shot up. "The northern lights" she said. "I think they are beautiful - it is caused by the collision of energetic charged particles in the high altiitude hemisphere" Sarah said.