Recent content by Jusdat

Thanks for your responses. There are many factors at work and I understand that density, air between materials and the type of mateiral all play there part. I was observed for half an hour, they wanted to see 'significant progress' which is almost impossible given their age and the nature...

Hi, I am a primary school teacher and have just been observed by my headteacher and a "senior consultant" in a lesson on sound. I asked the children to find the best insulator of an alarm clock from a range of materials wrapped around it. The material that worked best was the newspaper...