Science investigations: Light and dark

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By Gillian Ravenscroftscience coordinator and freelance writer

Why can’t we see around corners?... And more mind-boggling questions about light and dark

Illustrated cartoon face

Online extras!

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

'Why?': science light and dark
'Why?': science light and dark illustration

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

Our new 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 (available in full exclusively to members) will be available each month posing the same six themed questions that will allow children to respond electronically.

This month’s focus is light and dark, with opportunities to make and test predictions, draw conclusions and carry out further research.


  1. Why can’t we see around corners?
  2. Why do our feet look like they are not at the end of our legs when in water?
  3. Why do shadows sometimes look huge?
  4. Why are rainbows always made up of the same order of colours?
  5. Why can’t I pin a tail on the donkey?
  6. Why do periscopes have mirrors in them?
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