Science investigations: Sound

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By Gillian Ravenscroftscience coordinator and freelance writer

Use some quirky questions on sound to boost children’s investigative skills

This science series poses themed questions that can be turned into scientific investigations. It aims to encourage children to think creatively about how things work. Each month, we’ll feature six questions – each with three plausible answers (correct answers are shown here in bold). The children must decide which answer is correct by first predicting, researching and then answering each one based on their findings. A linked interactive resource – with animation and audio to bring the investigation to life – will be available each month posing the same six themed questions that will allow children to respond electronically.

This month’s focus is sound. Using the following six questions, challenge your class to predict, plan, record and draw their own conclusions, as well as find information from internet sources and make measurements with a data logger.

Online extras!

Don’t forget to use the Interactive resource, ‘Why?’: Science – sound’.

This fun, illustrated resource poses sound-themed questions and challenges children to work out the correct answers. The Poster and Activity sheets, ‘Why?’: Science – sound’ are also available.

Plus, don’t forget to check out last month’s light and dark-themed activities and resources.


  1. Why can I hear through a string telephone?
  2. Why does an inflated balloon jiggle when I talk close to it?
  3. Why do road diggers need ear defenders?
  4. Why do percussion instruments sometimes sound loud?
  5. Why can I play a tune when I twang my ruler in different places?
  6. Why are human ears on the sides of our heads?
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